diff --git a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/document.proto b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/document.proto
index c4fbb21ceca..680cf88282f 100644
--- a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/document.proto
+++ b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/document.proto
@@ -50,7 +50,8 @@ message Document {
     // Total number of shards.
     int64 shard_count = 2;
 
-    // The index of the first character in [Document.text][google.cloud.documentai.v1.Document.text] in the overall
+    // The index of the first character in
+    // [Document.text][google.cloud.documentai.v1.Document.text] in the overall
     // document global text.
     int64 text_offset = 3;
   }
@@ -67,7 +68,8 @@ message Document {
       string unit = 2;
     }
 
-    // Text anchor indexing into the [Document.text][google.cloud.documentai.v1.Document.text].
+    // Text anchor indexing into the
+    // [Document.text][google.cloud.documentai.v1.Document.text].
     TextAnchor text_anchor = 1;
 
     // Text color.
@@ -168,25 +170,31 @@ message Document {
         PAGE_LEFT = 4;
       }
 
-      // Text anchor indexing into the [Document.text][google.cloud.documentai.v1.Document.text].
+      // Text anchor indexing into the
+      // [Document.text][google.cloud.documentai.v1.Document.text].
       TextAnchor text_anchor = 1;
 
-      // Confidence of the current [Layout][google.cloud.documentai.v1.Document.Page.Layout] within context of the object this
-      // layout is for. e.g. confidence can be for a single token, a table,
-      // a visual element, etc. depending on context. Range `[0, 1]`.
+      // Confidence of the current
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] within
+      // context of the object this layout is for. e.g. confidence can be for a
+      // single token, a table, a visual element, etc. depending on context.
+      // Range `[0, 1]`.
       float confidence = 2;
 
-      // The bounding polygon for the [Layout][google.cloud.documentai.v1.Document.Page.Layout].
+      // The bounding polygon for the
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout].
       BoundingPoly bounding_poly = 3;
 
-      // Detected orientation for the [Layout][google.cloud.documentai.v1.Document.Page.Layout].
+      // Detected orientation for the
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout].
       Orientation orientation = 4;
     }
 
     // A block has a set of lines (collected into paragraphs) that have a
     // common line-spacing and orientation.
     message Block {
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [Block][google.cloud.documentai.v1.Document.Page.Block].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [Block][google.cloud.documentai.v1.Document.Page.Block].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
@@ -198,7 +206,8 @@ message Document {
 
     // A collection of lines that a human would perceive as a paragraph.
     message Paragraph {
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1.Document.Page.Paragraph].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [Paragraph][google.cloud.documentai.v1.Document.Page.Paragraph].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
@@ -211,7 +220,8 @@ message Document {
     // A collection of tokens that a human would perceive as a line.
     // Does not cross column boundaries, can be horizontal, vertical, etc.
     message Line {
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [Line][google.cloud.documentai.v1.Document.Page.Line].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [Line][google.cloud.documentai.v1.Document.Page.Line].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
@@ -223,7 +233,8 @@ message Document {
 
     // A detected token.
     message Token {
-      // Detected break at the end of a [Token][google.cloud.documentai.v1.Document.Page.Token].
+      // Detected break at the end of a
+      // [Token][google.cloud.documentai.v1.Document.Page.Token].
       message DetectedBreak {
         // Enum to denote the type of break found.
         enum Type {
@@ -244,10 +255,12 @@ message Document {
         Type type = 1;
       }
 
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [Token][google.cloud.documentai.v1.Document.Page.Token].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [Token][google.cloud.documentai.v1.Document.Page.Token].
       Layout layout = 1;
 
-      // Detected break at the end of a [Token][google.cloud.documentai.v1.Document.Page.Token].
+      // Detected break at the end of a
+      // [Token][google.cloud.documentai.v1.Document.Page.Token].
       DetectedBreak detected_break = 2;
 
       // A list of detected languages together with confidence.
@@ -259,7 +272,8 @@ message Document {
 
     // A detected symbol.
     message Symbol {
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [Symbol][google.cloud.documentai.v1.Document.Page.Symbol].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [Symbol][google.cloud.documentai.v1.Document.Page.Symbol].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
@@ -269,10 +283,12 @@ message Document {
     // Detected non-text visual elements e.g. checkbox, signature etc. on the
     // page.
     message VisualElement {
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [VisualElement][google.cloud.documentai.v1.Document.Page.VisualElement].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [VisualElement][google.cloud.documentai.v1.Document.Page.VisualElement].
       Layout layout = 1;
 
-      // Type of the [VisualElement][google.cloud.documentai.v1.Document.Page.VisualElement].
+      // Type of the
+      // [VisualElement][google.cloud.documentai.v1.Document.Page.VisualElement].
       string type = 2;
 
       // A list of detected languages together with confidence.
@@ -289,7 +305,8 @@ message Document {
 
       // A cell representation inside the table.
       message TableCell {
-        // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1.Document.Page.Table.TableCell].
+        // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+        // [TableCell][google.cloud.documentai.v1.Document.Page.Table.TableCell].
         Layout layout = 1;
 
         // How many rows this cell spans.
@@ -302,7 +319,8 @@ message Document {
         repeated DetectedLanguage detected_languages = 4;
       }
 
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [Table][google.cloud.documentai.v1.Document.Page.Table].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [Table][google.cloud.documentai.v1.Document.Page.Table].
       Layout layout = 1;
 
       // Header rows of the table.
@@ -320,11 +338,13 @@ message Document {
 
     // A form field detected on the page.
     message FormField {
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1.Document.Page.FormField] name. e.g. `Address`, `Email`,
-      // `Grand total`, `Phone number`, etc.
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for the
+      // [FormField][google.cloud.documentai.v1.Document.Page.FormField] name.
+      // e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
       Layout field_name = 1;
 
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1.Document.Page.FormField] value.
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for the
+      // [FormField][google.cloud.documentai.v1.Document.Page.FormField] value.
       Layout field_value = 2;
 
       // A list of detected languages for name together with confidence.
@@ -335,9 +355,10 @@ message Document {
 
       // If the value is non-textual, this field represents the type. Current
       // valid values are:
-      // - blank (this indicates the field_value is normal text)
-      // - "unfilled_checkbox"
-      // - "filled_checkbox"
+      //
+      // - blank (this indicates the `field_value` is normal text)
+      // - `unfilled_checkbox`
+      // - `filled_checkbox`
       string value_type = 5;
 
       // Created for Labeling UI to export key text.
@@ -356,10 +377,12 @@ message Document {
 
     // A detected barcode.
     message DetectedBarcode {
-      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for [DetectedBarcode][google.cloud.documentai.v1.Document.Page.DetectedBarcode].
+      // [Layout][google.cloud.documentai.v1.Document.Page.Layout] for
+      // [DetectedBarcode][google.cloud.documentai.v1.Document.Page.DetectedBarcode].
       Layout layout = 1;
 
-      // Detailed barcode information of the [DetectedBarcode][google.cloud.documentai.v1.Document.Page.DetectedBarcode].
+      // Detailed barcode information of the
+      // [DetectedBarcode][google.cloud.documentai.v1.Document.Page.DetectedBarcode].
       Barcode barcode = 2;
     }
 
@@ -402,9 +425,11 @@ message Document {
       repeated DetectedDefect detected_defects = 2;
     }
 
-    // 1-based index for current [Page][google.cloud.documentai.v1.Document.Page] in a parent [Document][google.cloud.documentai.v1.Document].
-    // Useful when a page is taken out of a [Document][google.cloud.documentai.v1.Document] for individual
-    // processing.
+    // 1-based index for current
+    // [Page][google.cloud.documentai.v1.Document.Page] in a parent
+    // [Document][google.cloud.documentai.v1.Document]. Useful when a page is
+    // taken out of a [Document][google.cloud.documentai.v1.Document] for
+    // individual processing.
     int32 page_number = 1;
 
     // Rendered image for this page. This image is preprocessed to remove any
@@ -505,8 +530,8 @@ message Document {
       // Optional. An optional field to store a normalized string.
       // For some entity types, one of respective `structured_value` fields may
       // also be populated. Also not all the types of `structured_value` will be
-      // normalized. For example, some processors may not generate float
-      // or int normalized text by default.
+      // normalized. For example, some processors may not generate `float`
+      // or `integer` normalized text by default.
       //
       // Below are sample formats mapped to structured values.
       //
@@ -517,7 +542,8 @@ message Document {
     }
 
     // Optional. Provenance of the entity.
-    // Text anchor indexing into the [Document.text][google.cloud.documentai.v1.Document.text].
+    // Text anchor indexing into the
+    // [Document.text][google.cloud.documentai.v1.Document.text].
     TextAnchor text_anchor = 1 [(google.api.field_behavior) = OPTIONAL];
 
     // Required. Entity type from a schema e.g. `Address`.
@@ -532,32 +558,35 @@ message Document {
     // Optional. Confidence of detected Schema entity. Range `[0, 1]`.
     float confidence = 5 [(google.api.field_behavior) = OPTIONAL];
 
-    // Optional. Represents the provenance of this entity wrt. the location on the
-    // page where it was found.
+    // Optional. Represents the provenance of this entity wrt. the location on
+    // the page where it was found.
     PageAnchor page_anchor = 6 [(google.api.field_behavior) = OPTIONAL];
 
     // Optional. Canonical id. This will be a unique value in the entity list
     // for this document.
     string id = 7 [(google.api.field_behavior) = OPTIONAL];
 
-    // Optional. Normalized entity value. Absent if the extracted value could not be
-    // converted or the type (e.g. address) is not supported for certain
+    // Optional. Normalized entity value. Absent if the extracted value could
+    // not be converted or the type (e.g. address) is not supported for certain
     // parsers. This field is also only populated for certain supported document
     // types.
-    NormalizedValue normalized_value = 9 [(google.api.field_behavior) = OPTIONAL];
+    NormalizedValue normalized_value = 9
+        [(google.api.field_behavior) = OPTIONAL];
 
-    // Optional. Entities can be nested to form a hierarchical data structure representing
-    // the content in the document.
+    // Optional. Entities can be nested to form a hierarchical data structure
+    // representing the content in the document.
     repeated Entity properties = 10 [(google.api.field_behavior) = OPTIONAL];
 
     // Optional. The history of this annotation.
     Provenance provenance = 11 [(google.api.field_behavior) = OPTIONAL];
 
-    // Optional. Whether the entity will be redacted for de-identification purposes.
+    // Optional. Whether the entity will be redacted for de-identification
+    // purposes.
     bool redacted = 12 [(google.api.field_behavior) = OPTIONAL];
   }
 
-  // Relationship between [Entities][google.cloud.documentai.v1.Document.Entity].
+  // Relationship between
+  // [Entities][google.cloud.documentai.v1.Document.Entity].
   message EntityRelation {
     // Subject entity id.
     string subject_id = 1;
@@ -569,21 +598,28 @@ message Document {
     string relation = 3;
   }
 
-  // Text reference indexing into the [Document.text][google.cloud.documentai.v1.Document.text].
+  // Text reference indexing into the
+  // [Document.text][google.cloud.documentai.v1.Document.text].
   message TextAnchor {
-    // A text segment in the [Document.text][google.cloud.documentai.v1.Document.text]. The indices may be out of bounds
-    // which indicate that the text extends into another document shard for
-    // large sharded documents. See [ShardInfo.text_offset][google.cloud.documentai.v1.Document.ShardInfo.text_offset]
+    // A text segment in the
+    // [Document.text][google.cloud.documentai.v1.Document.text]. The indices
+    // may be out of bounds which indicate that the text extends into another
+    // document shard for large sharded documents. See
+    // [ShardInfo.text_offset][google.cloud.documentai.v1.Document.ShardInfo.text_offset]
     message TextSegment {
-      // [TextSegment][google.cloud.documentai.v1.Document.TextAnchor.TextSegment] start UTF-8 char index in the [Document.text][google.cloud.documentai.v1.Document.text].
+      // [TextSegment][google.cloud.documentai.v1.Document.TextAnchor.TextSegment]
+      // start UTF-8 char index in the
+      // [Document.text][google.cloud.documentai.v1.Document.text].
       int64 start_index = 1;
 
-      // [TextSegment][google.cloud.documentai.v1.Document.TextAnchor.TextSegment] half open end UTF-8 char index in the
+      // [TextSegment][google.cloud.documentai.v1.Document.TextAnchor.TextSegment]
+      // half open end UTF-8 char index in the
       // [Document.text][google.cloud.documentai.v1.Document.text].
       int64 end_index = 2;
     }
 
-    // The text segments from the [Document.text][google.cloud.documentai.v1.Document.text].
+    // The text segments from the
+    // [Document.text][google.cloud.documentai.v1.Document.text].
     repeated TextSegment text_segments = 1;
 
     // Contains the content of the text span so that users do
@@ -592,9 +628,10 @@ message Document {
     string content = 2;
   }
 
-  // Referencing the visual context of the entity in the [Document.pages][google.cloud.documentai.v1.Document.pages].
-  // Page anchors can be cross-page, consist of multiple bounding polygons and
-  // optionally reference specific layout element types.
+  // Referencing the visual context of the entity in the
+  // [Document.pages][google.cloud.documentai.v1.Document.pages]. Page anchors
+  // can be cross-page, consist of multiple bounding polygons and optionally
+  // reference specific layout element types.
   message PageAnchor {
     // Represents a weak reference to a page element within a document.
     message PageRef {
@@ -603,47 +640,65 @@ message Document {
         // Layout Unspecified.
         LAYOUT_TYPE_UNSPECIFIED = 0;
 
-        // References a [Page.blocks][google.cloud.documentai.v1.Document.Page.blocks] element.
+        // References a
+        // [Page.blocks][google.cloud.documentai.v1.Document.Page.blocks]
+        // element.
         BLOCK = 1;
 
-        // References a [Page.paragraphs][google.cloud.documentai.v1.Document.Page.paragraphs] element.
+        // References a
+        // [Page.paragraphs][google.cloud.documentai.v1.Document.Page.paragraphs]
+        // element.
         PARAGRAPH = 2;
 
-        // References a [Page.lines][google.cloud.documentai.v1.Document.Page.lines] element.
+        // References a
+        // [Page.lines][google.cloud.documentai.v1.Document.Page.lines] element.
         LINE = 3;
 
-        // References a [Page.tokens][google.cloud.documentai.v1.Document.Page.tokens] element.
+        // References a
+        // [Page.tokens][google.cloud.documentai.v1.Document.Page.tokens]
+        // element.
         TOKEN = 4;
 
-        // References a [Page.visual_elements][google.cloud.documentai.v1.Document.Page.visual_elements] element.
+        // References a
+        // [Page.visual_elements][google.cloud.documentai.v1.Document.Page.visual_elements]
+        // element.
         VISUAL_ELEMENT = 5;
 
-        // Refrrences a [Page.tables][google.cloud.documentai.v1.Document.Page.tables] element.
+        // Refrrences a
+        // [Page.tables][google.cloud.documentai.v1.Document.Page.tables]
+        // element.
         TABLE = 6;
 
-        // References a [Page.form_fields][google.cloud.documentai.v1.Document.Page.form_fields] element.
+        // References a
+        // [Page.form_fields][google.cloud.documentai.v1.Document.Page.form_fields]
+        // element.
         FORM_FIELD = 7;
       }
 
-      // Required. Index into the [Document.pages][google.cloud.documentai.v1.Document.pages] element, for example using
-      // [Document.pages][page_refs.page] to locate the related page element.
-      // This field is skipped when its value is the default 0. See
+      // Required. Index into the
+      // [Document.pages][google.cloud.documentai.v1.Document.pages] element,
+      // for example using
+      // `[Document.pages][page_refs.page]` to locate the related page element.
+      // This field is skipped when its value is the default `0`. See
       // https://developers.google.com/protocol-buffers/docs/proto3#json.
       int64 page = 1 [(google.api.field_behavior) = REQUIRED];
 
-      // Optional. The type of the layout element that is being referenced if any.
+      // Optional. The type of the layout element that is being referenced if
+      // any.
       LayoutType layout_type = 2 [(google.api.field_behavior) = OPTIONAL];
 
-      // Optional. Deprecated.  Use [PageRef.bounding_poly][google.cloud.documentai.v1.Document.PageAnchor.PageRef.bounding_poly] instead.
-      string layout_id = 3 [
-        deprecated = true,
-        (google.api.field_behavior) = OPTIONAL
-      ];
+      // Optional. Deprecated.  Use
+      // [PageRef.bounding_poly][google.cloud.documentai.v1.Document.PageAnchor.PageRef.bounding_poly]
+      // instead.
+      string layout_id = 3
+          [deprecated = true, (google.api.field_behavior) = OPTIONAL];
 
-      // Optional. Identifies the bounding polygon of a layout element on the page.
+      // Optional. Identifies the bounding polygon of a layout element on the
+      // page.
       BoundingPoly bounding_poly = 4 [(google.api.field_behavior) = OPTIONAL];
 
-      // Optional. Confidence of detected page element, if applicable. Range `[0, 1]`.
+      // Optional. Confidence of detected page element, if applicable. Range
+      // `[0, 1]`.
       float confidence = 5 [(google.api.field_behavior) = OPTIONAL];
     }
 
@@ -754,8 +809,9 @@ message Document {
   // This message is used for text changes aka. OCR corrections.
   message TextChange {
     // Provenance of the correction.
-    // Text anchor indexing into the [Document.text][google.cloud.documentai.v1.Document.text].  There can only be a
-    // single `TextAnchor.text_segments` element.  If the start and
+    // Text anchor indexing into the
+    // [Document.text][google.cloud.documentai.v1.Document.text].  There can
+    // only be a single `TextAnchor.text_segments` element.  If the start and
     // end index of the text segment are the same, the text change is inserted
     // before that index.
     TextAnchor text_anchor = 1;
@@ -790,22 +846,25 @@ message Document {
   // Optional. UTF-8 encoded text in reading order from the document.
   string text = 4 [(google.api.field_behavior) = OPTIONAL];
 
-  // Placeholder.  Styles for the [Document.text][google.cloud.documentai.v1.Document.text].
-  repeated Style text_styles = 5;
+  // Styles for the [Document.text][google.cloud.documentai.v1.Document.text].
+  repeated Style text_styles = 5 [deprecated = true];
 
   // Visual page layout for the [Document][google.cloud.documentai.v1.Document].
   repeated Page pages = 6;
 
-  // A list of entities detected on [Document.text][google.cloud.documentai.v1.Document.text]. For document shards,
-  // entities in this list may cross shard boundaries.
+  // A list of entities detected on
+  // [Document.text][google.cloud.documentai.v1.Document.text]. For document
+  // shards, entities in this list may cross shard boundaries.
   repeated Entity entities = 7;
 
-  // Placeholder.  Relationship among [Document.entities][google.cloud.documentai.v1.Document.entities].
+  // Placeholder.  Relationship among
+  // [Document.entities][google.cloud.documentai.v1.Document.entities].
   repeated EntityRelation entity_relations = 8;
 
-  // Placeholder.  A list of text corrections made to [Document.text][google.cloud.documentai.v1.Document.text].  This
-  // is usually used for annotating corrections to OCR mistakes.  Text changes
-  // for a given revision may not overlap with each other.
+  // Placeholder.  A list of text corrections made to
+  // [Document.text][google.cloud.documentai.v1.Document.text].  This is usually
+  // used for annotating corrections to OCR mistakes.  Text changes for a given
+  // revision may not overlap with each other.
   repeated TextChange text_changes = 14;
 
   // Information about the sharding if this document is sharded part of a larger
diff --git a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/document_processor_service.proto b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/document_processor_service.proto
index e748ae1f748..016d99a8edd 100644
--- a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/document_processor_service.proto
+++ b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/document_processor_service.proto
@@ -53,7 +53,8 @@ option (google.api.resource_definition) = {
 // structured information from unstructured or semi-structured documents.
 service DocumentProcessorService {
   option (google.api.default_host) = "documentai.googleapis.com";
-  option (google.api.oauth_scopes) = "https://www.googleapis.com/auth/cloud-platform";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform";
 
   // Processes a single document.
   rpc ProcessDocument(ProcessRequest) returns (ProcessResponse) {
@@ -70,7 +71,8 @@ service DocumentProcessorService {
 
   // LRO endpoint to batch process many documents. The output is written
   // to Cloud Storage as JSON in the [Document] format.
-  rpc BatchProcessDocuments(BatchProcessRequest) returns (google.longrunning.Operation) {
+  rpc BatchProcessDocuments(BatchProcessRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1/{name=projects/*/locations/*/processors/*}:batchProcess"
       body: "*"
@@ -88,7 +90,8 @@ service DocumentProcessorService {
 
   // Fetches processor types. Note that we do not use ListProcessorTypes here
   // because it is not paginated.
-  rpc FetchProcessorTypes(FetchProcessorTypesRequest) returns (FetchProcessorTypesResponse) {
+  rpc FetchProcessorTypes(FetchProcessorTypesRequest)
+      returns (FetchProcessorTypesResponse) {
     option (google.api.http) = {
       get: "/v1/{parent=projects/*/locations/*}:fetchProcessorTypes"
     };
@@ -96,7 +99,8 @@ service DocumentProcessorService {
   }
 
   // Lists the processor types that exist.
-  rpc ListProcessorTypes(ListProcessorTypesRequest) returns (ListProcessorTypesResponse) {
+  rpc ListProcessorTypes(ListProcessorTypesRequest)
+      returns (ListProcessorTypesResponse) {
     option (google.api.http) = {
       get: "/v1/{parent=projects/*/locations/*}/processorTypes"
     };
@@ -120,7 +124,8 @@ service DocumentProcessorService {
   }
 
   // Gets a processor version detail.
-  rpc GetProcessorVersion(GetProcessorVersionRequest) returns (ProcessorVersion) {
+  rpc GetProcessorVersion(GetProcessorVersionRequest)
+      returns (ProcessorVersion) {
     option (google.api.http) = {
       get: "/v1/{name=projects/*/locations/*/processors/*/processorVersions/*}"
     };
@@ -128,7 +133,8 @@ service DocumentProcessorService {
   }
 
   // Lists all versions of a processor.
-  rpc ListProcessorVersions(ListProcessorVersionsRequest) returns (ListProcessorVersionsResponse) {
+  rpc ListProcessorVersions(ListProcessorVersionsRequest)
+      returns (ListProcessorVersionsResponse) {
     option (google.api.http) = {
       get: "/v1/{parent=projects/*/locations/*/processors/*}/processorVersions"
     };
@@ -137,7 +143,8 @@ service DocumentProcessorService {
 
   // Deletes the processor version, all artifacts under the processor version
   // will be deleted.
-  rpc DeleteProcessorVersion(DeleteProcessorVersionRequest) returns (google.longrunning.Operation) {
+  rpc DeleteProcessorVersion(DeleteProcessorVersionRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       delete: "/v1/{name=projects/*/locations/*/processors/*/processorVersions/*}"
     };
@@ -149,7 +156,8 @@ service DocumentProcessorService {
   }
 
   // Deploys the processor version.
-  rpc DeployProcessorVersion(DeployProcessorVersionRequest) returns (google.longrunning.Operation) {
+  rpc DeployProcessorVersion(DeployProcessorVersionRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1/{name=projects/*/locations/*/processors/*/processorVersions/*}:deploy"
       body: "*"
@@ -162,7 +170,8 @@ service DocumentProcessorService {
   }
 
   // Undeploys the processor version.
-  rpc UndeployProcessorVersion(UndeployProcessorVersionRequest) returns (google.longrunning.Operation) {
+  rpc UndeployProcessorVersion(UndeployProcessorVersionRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1/{name=projects/*/locations/*/processors/*/processorVersions/*}:undeploy"
       body: "*"
@@ -186,7 +195,8 @@ service DocumentProcessorService {
 
   // Deletes the processor, unloads all deployed model artifacts if it was
   // enabled and then deletes all artifacts associated with this processor.
-  rpc DeleteProcessor(DeleteProcessorRequest) returns (google.longrunning.Operation) {
+  rpc DeleteProcessor(DeleteProcessorRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       delete: "/v1/{name=projects/*/locations/*/processors/*}"
     };
@@ -198,7 +208,8 @@ service DocumentProcessorService {
   }
 
   // Enables a processor
-  rpc EnableProcessor(EnableProcessorRequest) returns (google.longrunning.Operation) {
+  rpc EnableProcessor(EnableProcessorRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1/{name=projects/*/locations/*/processors/*}:enable"
       body: "*"
@@ -210,7 +221,8 @@ service DocumentProcessorService {
   }
 
   // Disables a processor
-  rpc DisableProcessor(DisableProcessorRequest) returns (google.longrunning.Operation) {
+  rpc DisableProcessor(DisableProcessorRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1/{name=projects/*/locations/*/processors/*}:disable"
       body: "*"
@@ -221,10 +233,13 @@ service DocumentProcessorService {
     };
   }
 
-  // Set the default (active) version of a [Processor][google.cloud.documentai.v1.Processor] that will be used in
-  // [ProcessDocument][google.cloud.documentai.v1.DocumentProcessorService.ProcessDocument] and
+  // Set the default (active) version of a
+  // [Processor][google.cloud.documentai.v1.Processor] that will be used in
+  // [ProcessDocument][google.cloud.documentai.v1.DocumentProcessorService.ProcessDocument]
+  // and
   // [BatchProcessDocuments][google.cloud.documentai.v1.DocumentProcessorService.BatchProcessDocuments].
-  rpc SetDefaultProcessorVersion(SetDefaultProcessorVersionRequest) returns (google.longrunning.Operation) {
+  rpc SetDefaultProcessorVersion(SetDefaultProcessorVersionRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1/{processor=projects/*/locations/*/processors/*}:setDefaultProcessorVersion"
       body: "*"
@@ -237,7 +252,8 @@ service DocumentProcessorService {
 
   // Send a document for Human Review. The input document should be processed by
   // the specified processor.
-  rpc ReviewDocument(ReviewDocumentRequest) returns (google.longrunning.Operation) {
+  rpc ReviewDocument(ReviewDocumentRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1/{human_review_config=projects/*/locations/*/processors/*/humanReviewConfig}:reviewDocument"
       body: "*"
@@ -261,17 +277,19 @@ message ProcessRequest {
     RawDocument raw_document = 5;
   }
 
-  // Required. The resource name of the [Processor][google.cloud.documentai.v1.Processor] or
+  // Required. The resource name of the
+  // [Processor][google.cloud.documentai.v1.Processor] or
   // [ProcessorVersion][google.cloud.documentai.v1.ProcessorVersion]
-  // to use for processing. If a [Processor][google.cloud.documentai.v1.Processor] is specified, the server will use
-  // its [default version][google.cloud.documentai.v1.Processor.default_processor_version]. Format:
-  // `projects/{project}/locations/{location}/processors/{processor}`, or
+  // to use for processing. If a
+  // [Processor][google.cloud.documentai.v1.Processor] is specified, the server
+  // will use its [default
+  // version][google.cloud.documentai.v1.Processor.default_processor_version].
+  // Format: `projects/{project}/locations/{location}/processors/{processor}`,
+  // or
   // `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
   string name = 1 [
     (google.api.field_behavior) = REQUIRED,
-    (google.api.resource_reference) = {
-      type: "*"
-    }
+    (google.api.resource_reference) = { type: "*" }
   ];
 
   // Whether Human Review feature should be skipped for this request. Default to
@@ -332,16 +350,15 @@ message ProcessResponse {
 
 // Request message for batch process document method.
 message BatchProcessRequest {
-  // Required. The resource name of [Processor][google.cloud.documentai.v1.Processor] or
+  // Required. The resource name of
+  // [Processor][google.cloud.documentai.v1.Processor] or
   // [ProcessorVersion][google.cloud.documentai.v1.ProcessorVersion].
   // Format: `projects/{project}/locations/{location}/processors/{processor}`,
   // or
   // `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
   string name = 1 [
     (google.api.field_behavior) = REQUIRED,
-    (google.api.resource_reference) = {
-      type: "*"
-    }
+    (google.api.resource_reference) = { type: "*" }
   ];
 
   // The input documents for batch process.
@@ -356,9 +373,7 @@ message BatchProcessRequest {
 }
 
 // Response message for batch process document method.
-message BatchProcessResponse {
-
-}
+message BatchProcessResponse {}
 
 // The long running operation metadata for batch process method.
 message BatchProcessMetadata {
@@ -473,8 +488,8 @@ message ListProcessorTypesResponse {
 
 // Request message for list all processors belongs to a project.
 message ListProcessorsRequest {
-  // Required. The parent (project and location) which owns this collection of Processors.
-  // Format: `projects/{project}/locations/{location}`
+  // Required. The parent (project and location) which owns this collection of
+  // Processors. Format: `projects/{project}/locations/{location}`
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -525,8 +540,9 @@ message GetProcessorVersionRequest {
 
 // Request message for list all processor versions belongs to a processor.
 message ListProcessorVersionsRequest {
-  // Required. The parent (project, location and processor) to list all versions.
-  // Format: `projects/{project}/locations/{location}/processors/{processor}`
+  // Required. The parent (project, location and processor) to list all
+  // versions. Format:
+  // `projects/{project}/locations/{location}/processors/{processor}`
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -582,9 +598,7 @@ message DeployProcessorVersionRequest {
 }
 
 // Response message for the deploy processor version method.
-message DeployProcessorVersionResponse {
-
-}
+message DeployProcessorVersionResponse {}
 
 // The long running operation metadata for deploy processor version method.
 message DeployProcessorVersionMetadata {
@@ -604,9 +618,7 @@ message UndeployProcessorVersionRequest {
 }
 
 // Response message for the undeploy processor version method.
-message UndeployProcessorVersionResponse {
-
-}
+message UndeployProcessorVersionResponse {}
 
 // The long running operation metadata for the undeploy processor version
 // method.
@@ -619,8 +631,8 @@ message UndeployProcessorVersionMetadata {
 // a regionalized backend service, and if the processor type is not available
 // on that region, the creation will fail.
 message CreateProcessorRequest {
-  // Required. The parent (project and location) under which to create the processor.
-  // Format: `projects/{project}/locations/{location}`
+  // Required. The parent (project and location) under which to create the
+  // processor. Format: `projects/{project}/locations/{location}`
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -628,8 +640,9 @@ message CreateProcessorRequest {
     }
   ];
 
-  // Required. The processor to be created, requires [processor_type] and [display_name]
-  // to be set. Also, the processor is under CMEK if CMEK fields are set.
+  // Required. The processor to be created, requires [processor_type] and
+  // [display_name] to be set. Also, the processor is under CMEK if CMEK fields
+  // are set.
   Processor processor = 2 [(google.api.field_behavior) = REQUIRED];
 }
 
@@ -663,9 +676,7 @@ message EnableProcessorRequest {
 
 // Response message for the enable processor method.
 // Intentionally empty proto for adding fields in future.
-message EnableProcessorResponse {
-
-}
+message EnableProcessorResponse {}
 
 // The long running operation metadata for enable processor method.
 message EnableProcessorMetadata {
@@ -686,9 +697,7 @@ message DisableProcessorRequest {
 
 // Response message for the disable processor method.
 // Intentionally empty proto for adding fields in future.
-message DisableProcessorResponse {
-
-}
+message DisableProcessorResponse {}
 
 // The long running operation metadata for disable processor method.
 message DisableProcessorMetadata {
@@ -698,7 +707,9 @@ message DisableProcessorMetadata {
 
 // Request message for the set default processor version method.
 message SetDefaultProcessorVersionRequest {
-  // Required. The resource name of the [Processor][google.cloud.documentai.v1.Processor] to change default version.
+  // Required. The resource name of the
+  // [Processor][google.cloud.documentai.v1.Processor] to change default
+  // version.
   string processor = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -706,8 +717,9 @@ message SetDefaultProcessorVersionRequest {
     }
   ];
 
-  // Required. The resource name of child [ProcessorVersion][google.cloud.documentai.v1.ProcessorVersion] to use as default.
-  // Format:
+  // Required. The resource name of child
+  // [ProcessorVersion][google.cloud.documentai.v1.ProcessorVersion] to use as
+  // default. Format:
   // `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{version}`
   string default_processor_version = 2 [
     (google.api.field_behavior) = REQUIRED,
@@ -718,9 +730,7 @@ message SetDefaultProcessorVersionRequest {
 }
 
 // Response message for set default processor version method.
-message SetDefaultProcessorVersionResponse {
-
-}
+message SetDefaultProcessorVersionResponse {}
 
 // The long running operation metadata for set default processor version
 // method.
@@ -747,8 +757,8 @@ message ReviewDocumentRequest {
     Document inline_document = 4;
   }
 
-  // Required. The resource name of the HumanReviewConfig that the document will be
-  // reviewed with.
+  // Required. The resource name of the HumanReviewConfig that the document will
+  // be reviewed with.
   string human_review_config = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
diff --git a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/document_schema.proto b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/document_schema.proto
index ceb25a1d69a..679a6ee59e8 100644
--- a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/document_schema.proto
+++ b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/document_schema.proto
@@ -88,7 +88,7 @@ message DocumentSchema {
     // conventions:
     //
     // - *use `snake_casing`*
-    // - name matching is case-insensitive
+    // - name matching is case-sensitive
     // - Maximum 64 characters.
     // - Must start with a letter.
     // - Allowed characters: ASCII letters `[a-z0-9_-]`.  (For backward
diff --git a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/processor.proto b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/processor.proto
index 3ffe6927df9..ac599e987b6 100644
--- a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/processor.proto
+++ b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/processor.proto
@@ -46,9 +46,10 @@ message ProcessorVersion {
     google.protobuf.Timestamp deprecation_time = 1;
 
     // If set, the processor version that will be used as a replacement.
-    string replacement_processor_version = 2 [(google.api.resource_reference) = {
-                                                type: "documentai.googleapis.com/ProcessorVersion"
-                                              }];
+    string replacement_processor_version = 2
+        [(google.api.resource_reference) = {
+          type: "documentai.googleapis.com/ProcessorVersion"
+        }];
   }
 
   // The possible states of the processor version.
@@ -171,10 +172,11 @@ message Processor {
 
   // The default processor version.
   string default_processor_version = 9 [(google.api.resource_reference) = {
-                                          type: "documentai.googleapis.com/ProcessorVersion"
-                                        }];
+    type: "documentai.googleapis.com/ProcessorVersion"
+  }];
 
-  // Output only. Immutable. The http endpoint that can be called to invoke processing.
+  // Output only. Immutable. The http endpoint that can be called to invoke
+  // processing.
   string process_endpoint = 6 [
     (google.api.field_behavior) = OUTPUT_ONLY,
     (google.api.field_behavior) = IMMUTABLE
diff --git a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/processor_type.proto b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/processor_type.proto
index 2c9ee923051..a54274532cb 100644
--- a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/processor_type.proto
+++ b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1/processor_type.proto
@@ -60,4 +60,7 @@ message ProcessorType {
 
   // Launch stage of the processor type
   google.api.LaunchStage launch_stage = 8;
+
+  // A set of Cloud Storage URIs of sample documents for this processor.
+  repeated string sample_document_uris = 9;
 }
diff --git a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document.proto b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document.proto
index 2ae46db8e24..89f4d2e2161 100644
--- a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document.proto
+++ b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document.proto
@@ -50,8 +50,9 @@ message Document {
     // Total number of shards.
     int64 shard_count = 2;
 
-    // The index of the first character in [Document.text][google.cloud.documentai.v1beta3.Document.text] in the overall
-    // document global text.
+    // The index of the first character in
+    // [Document.text][google.cloud.documentai.v1beta3.Document.text] in the
+    // overall document global text.
     int64 text_offset = 3;
   }
 
@@ -67,7 +68,8 @@ message Document {
       string unit = 2;
     }
 
-    // Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta3.Document.text].
+    // Text anchor indexing into the
+    // [Document.text][google.cloud.documentai.v1beta3.Document.text].
     TextAnchor text_anchor = 1;
 
     // Text color.
@@ -168,25 +170,31 @@ message Document {
         PAGE_LEFT = 4;
       }
 
-      // Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta3.Document.text].
+      // Text anchor indexing into the
+      // [Document.text][google.cloud.documentai.v1beta3.Document.text].
       TextAnchor text_anchor = 1;
 
-      // Confidence of the current [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] within context of the object this
-      // layout is for. e.g. confidence can be for a single token, a table,
-      // a visual element, etc. depending on context. Range `[0, 1]`.
+      // Confidence of the current
+      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] within
+      // context of the object this layout is for. e.g. confidence can be for a
+      // single token, a table, a visual element, etc. depending on context.
+      // Range `[0, 1]`.
       float confidence = 2;
 
-      // The bounding polygon for the [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout].
+      // The bounding polygon for the
+      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout].
       BoundingPoly bounding_poly = 3;
 
-      // Detected orientation for the [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout].
+      // Detected orientation for the
+      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout].
       Orientation orientation = 4;
     }
 
     // A block has a set of lines (collected into paragraphs) that have a
     // common line-spacing and orientation.
     message Block {
-      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta3.Document.Page.Block].
+      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for
+      // [Block][google.cloud.documentai.v1beta3.Document.Page.Block].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
@@ -198,7 +206,8 @@ message Document {
 
     // A collection of lines that a human would perceive as a paragraph.
     message Paragraph {
-      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta3.Document.Page.Paragraph].
+      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for
+      // [Paragraph][google.cloud.documentai.v1beta3.Document.Page.Paragraph].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
@@ -211,7 +220,8 @@ message Document {
     // A collection of tokens that a human would perceive as a line.
     // Does not cross column boundaries, can be horizontal, vertical, etc.
     message Line {
-      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta3.Document.Page.Line].
+      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for
+      // [Line][google.cloud.documentai.v1beta3.Document.Page.Line].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
@@ -223,7 +233,8 @@ message Document {
 
     // A detected token.
     message Token {
-      // Detected break at the end of a [Token][google.cloud.documentai.v1beta3.Document.Page.Token].
+      // Detected break at the end of a
+      // [Token][google.cloud.documentai.v1beta3.Document.Page.Token].
       message DetectedBreak {
         // Enum to denote the type of break found.
         enum Type {
@@ -244,10 +255,12 @@ message Document {
         Type type = 1;
       }
 
-      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta3.Document.Page.Token].
+      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for
+      // [Token][google.cloud.documentai.v1beta3.Document.Page.Token].
       Layout layout = 1;
 
-      // Detected break at the end of a [Token][google.cloud.documentai.v1beta3.Document.Page.Token].
+      // Detected break at the end of a
+      // [Token][google.cloud.documentai.v1beta3.Document.Page.Token].
       DetectedBreak detected_break = 2;
 
       // A list of detected languages together with confidence.
@@ -259,7 +272,8 @@ message Document {
 
     // A detected symbol.
     message Symbol {
-      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for [Symbol][google.cloud.documentai.v1beta3.Document.Page.Symbol].
+      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for
+      // [Symbol][google.cloud.documentai.v1beta3.Document.Page.Symbol].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
@@ -269,10 +283,12 @@ message Document {
     // Detected non-text visual elements e.g. checkbox, signature etc. on the
     // page.
     message VisualElement {
-      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for [VisualElement][google.cloud.documentai.v1beta3.Document.Page.VisualElement].
+      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for
+      // [VisualElement][google.cloud.documentai.v1beta3.Document.Page.VisualElement].
       Layout layout = 1;
 
-      // Type of the [VisualElement][google.cloud.documentai.v1beta3.Document.Page.VisualElement].
+      // Type of the
+      // [VisualElement][google.cloud.documentai.v1beta3.Document.Page.VisualElement].
       string type = 2;
 
       // A list of detected languages together with confidence.
@@ -289,7 +305,8 @@ message Document {
 
       // A cell representation inside the table.
       message TableCell {
-        // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta3.Document.Page.Table.TableCell].
+        // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for
+        // [TableCell][google.cloud.documentai.v1beta3.Document.Page.Table.TableCell].
         Layout layout = 1;
 
         // How many rows this cell spans.
@@ -302,7 +319,8 @@ message Document {
         repeated DetectedLanguage detected_languages = 4;
       }
 
-      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta3.Document.Page.Table].
+      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for
+      // [Table][google.cloud.documentai.v1beta3.Document.Page.Table].
       Layout layout = 1;
 
       // Header rows of the table.
@@ -320,11 +338,14 @@ message Document {
 
     // A form field detected on the page.
     message FormField {
-      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta3.Document.Page.FormField] name. e.g. `Address`, `Email`,
-      // `Grand total`, `Phone number`, etc.
+      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for the
+      // [FormField][google.cloud.documentai.v1beta3.Document.Page.FormField]
+      // name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
       Layout field_name = 1;
 
-      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta3.Document.Page.FormField] value.
+      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for the
+      // [FormField][google.cloud.documentai.v1beta3.Document.Page.FormField]
+      // value.
       Layout field_value = 2;
 
       // A list of detected languages for name together with confidence.
@@ -335,9 +356,10 @@ message Document {
 
       // If the value is non-textual, this field represents the type. Current
       // valid values are:
-      // - blank (this indicates the field_value is normal text)
-      // - "unfilled_checkbox"
-      // - "filled_checkbox"
+      //
+      // - blank (this indicates the `field_value` is normal text)
+      // - `unfilled_checkbox`
+      // - `filled_checkbox`
       string value_type = 5;
 
       // Created for Labeling UI to export key text.
@@ -356,10 +378,12 @@ message Document {
 
     // A detected barcode.
     message DetectedBarcode {
-      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for [DetectedBarcode][google.cloud.documentai.v1beta3.Document.Page.DetectedBarcode].
+      // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for
+      // [DetectedBarcode][google.cloud.documentai.v1beta3.Document.Page.DetectedBarcode].
       Layout layout = 1;
 
-      // Detailed barcode information of the [DetectedBarcode][google.cloud.documentai.v1beta3.Document.Page.DetectedBarcode].
+      // Detailed barcode information of the
+      // [DetectedBarcode][google.cloud.documentai.v1beta3.Document.Page.DetectedBarcode].
       Barcode barcode = 2;
     }
 
@@ -402,9 +426,11 @@ message Document {
       repeated DetectedDefect detected_defects = 2;
     }
 
-    // 1-based index for current [Page][google.cloud.documentai.v1beta3.Document.Page] in a parent [Document][google.cloud.documentai.v1beta3.Document].
-    // Useful when a page is taken out of a [Document][google.cloud.documentai.v1beta3.Document] for individual
-    // processing.
+    // 1-based index for current
+    // [Page][google.cloud.documentai.v1beta3.Document.Page] in a parent
+    // [Document][google.cloud.documentai.v1beta3.Document]. Useful when a page
+    // is taken out of a [Document][google.cloud.documentai.v1beta3.Document]
+    // for individual processing.
     int32 page_number = 1;
 
     // Rendered image for this page. This image is preprocessed to remove any
@@ -413,13 +439,15 @@ message Document {
     Image image = 13;
 
     // Transformation matrices that were applied to the original document image
-    // to produce [Page.image][google.cloud.documentai.v1beta3.Document.Page.image].
+    // to produce
+    // [Page.image][google.cloud.documentai.v1beta3.Document.Page.image].
     repeated Matrix transforms = 14;
 
     // Physical dimension of the page.
     Dimension dimension = 2;
 
-    // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for the page.
+    // [Layout][google.cloud.documentai.v1beta3.Document.Page.Layout] for the
+    // page.
     Layout layout = 3;
 
     // A list of detected languages together with confidence.
@@ -505,8 +533,8 @@ message Document {
       // Optional. An optional field to store a normalized string.
       // For some entity types, one of respective `structured_value` fields may
       // also be populated. Also not all the types of `structured_value` will be
-      // normalized. For example, some processors may not generate float
-      // or int normalized text by default.
+      // normalized. For example, some processors may not generate `float`
+      // or `integer` normalized text by default.
       //
       // Below are sample formats mapped to structured values.
       //
@@ -517,7 +545,8 @@ message Document {
     }
 
     // Optional. Provenance of the entity.
-    // Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta3.Document.text].
+    // Text anchor indexing into the
+    // [Document.text][google.cloud.documentai.v1beta3.Document.text].
     TextAnchor text_anchor = 1 [(google.api.field_behavior) = OPTIONAL];
 
     // Required. Entity type from a schema e.g. `Address`.
@@ -532,32 +561,35 @@ message Document {
     // Optional. Confidence of detected Schema entity. Range `[0, 1]`.
     float confidence = 5 [(google.api.field_behavior) = OPTIONAL];
 
-    // Optional. Represents the provenance of this entity wrt. the location on the
-    // page where it was found.
+    // Optional. Represents the provenance of this entity wrt. the location on
+    // the page where it was found.
     PageAnchor page_anchor = 6 [(google.api.field_behavior) = OPTIONAL];
 
     // Optional. Canonical id. This will be a unique value in the entity list
     // for this document.
     string id = 7 [(google.api.field_behavior) = OPTIONAL];
 
-    // Optional. Normalized entity value. Absent if the extracted value could not be
-    // converted or the type (e.g. address) is not supported for certain
+    // Optional. Normalized entity value. Absent if the extracted value could
+    // not be converted or the type (e.g. address) is not supported for certain
     // parsers. This field is also only populated for certain supported document
     // types.
-    NormalizedValue normalized_value = 9 [(google.api.field_behavior) = OPTIONAL];
+    NormalizedValue normalized_value = 9
+        [(google.api.field_behavior) = OPTIONAL];
 
-    // Optional. Entities can be nested to form a hierarchical data structure representing
-    // the content in the document.
+    // Optional. Entities can be nested to form a hierarchical data structure
+    // representing the content in the document.
     repeated Entity properties = 10 [(google.api.field_behavior) = OPTIONAL];
 
     // Optional. The history of this annotation.
     Provenance provenance = 11 [(google.api.field_behavior) = OPTIONAL];
 
-    // Optional. Whether the entity will be redacted for de-identification purposes.
+    // Optional. Whether the entity will be redacted for de-identification
+    // purposes.
     bool redacted = 12 [(google.api.field_behavior) = OPTIONAL];
   }
 
-  // Relationship between [Entities][google.cloud.documentai.v1beta3.Document.Entity].
+  // Relationship between
+  // [Entities][google.cloud.documentai.v1beta3.Document.Entity].
   message EntityRelation {
     // Subject entity id.
     string subject_id = 1;
@@ -569,21 +601,28 @@ message Document {
     string relation = 3;
   }
 
-  // Text reference indexing into the [Document.text][google.cloud.documentai.v1beta3.Document.text].
+  // Text reference indexing into the
+  // [Document.text][google.cloud.documentai.v1beta3.Document.text].
   message TextAnchor {
-    // A text segment in the [Document.text][google.cloud.documentai.v1beta3.Document.text]. The indices may be out of bounds
-    // which indicate that the text extends into another document shard for
-    // large sharded documents. See [ShardInfo.text_offset][google.cloud.documentai.v1beta3.Document.ShardInfo.text_offset]
+    // A text segment in the
+    // [Document.text][google.cloud.documentai.v1beta3.Document.text]. The
+    // indices may be out of bounds which indicate that the text extends into
+    // another document shard for large sharded documents. See
+    // [ShardInfo.text_offset][google.cloud.documentai.v1beta3.Document.ShardInfo.text_offset]
     message TextSegment {
-      // [TextSegment][google.cloud.documentai.v1beta3.Document.TextAnchor.TextSegment] start UTF-8 char index in the [Document.text][google.cloud.documentai.v1beta3.Document.text].
+      // [TextSegment][google.cloud.documentai.v1beta3.Document.TextAnchor.TextSegment]
+      // start UTF-8 char index in the
+      // [Document.text][google.cloud.documentai.v1beta3.Document.text].
       int64 start_index = 1;
 
-      // [TextSegment][google.cloud.documentai.v1beta3.Document.TextAnchor.TextSegment] half open end UTF-8 char index in the
+      // [TextSegment][google.cloud.documentai.v1beta3.Document.TextAnchor.TextSegment]
+      // half open end UTF-8 char index in the
       // [Document.text][google.cloud.documentai.v1beta3.Document.text].
       int64 end_index = 2;
     }
 
-    // The text segments from the [Document.text][google.cloud.documentai.v1beta3.Document.text].
+    // The text segments from the
+    // [Document.text][google.cloud.documentai.v1beta3.Document.text].
     repeated TextSegment text_segments = 1;
 
     // Contains the content of the text span so that users do
@@ -592,8 +631,9 @@ message Document {
     string content = 2;
   }
 
-  // Referencing the visual context of the entity in the [Document.pages][google.cloud.documentai.v1beta3.Document.pages].
-  // Page anchors can be cross-page, consist of multiple bounding polygons and
+  // Referencing the visual context of the entity in the
+  // [Document.pages][google.cloud.documentai.v1beta3.Document.pages]. Page
+  // anchors can be cross-page, consist of multiple bounding polygons and
   // optionally reference specific layout element types.
   message PageAnchor {
     // Represents a weak reference to a page element within a document.
@@ -603,47 +643,66 @@ message Document {
         // Layout Unspecified.
         LAYOUT_TYPE_UNSPECIFIED = 0;
 
-        // References a [Page.blocks][google.cloud.documentai.v1beta3.Document.Page.blocks] element.
+        // References a
+        // [Page.blocks][google.cloud.documentai.v1beta3.Document.Page.blocks]
+        // element.
         BLOCK = 1;
 
-        // References a [Page.paragraphs][google.cloud.documentai.v1beta3.Document.Page.paragraphs] element.
+        // References a
+        // [Page.paragraphs][google.cloud.documentai.v1beta3.Document.Page.paragraphs]
+        // element.
         PARAGRAPH = 2;
 
-        // References a [Page.lines][google.cloud.documentai.v1beta3.Document.Page.lines] element.
+        // References a
+        // [Page.lines][google.cloud.documentai.v1beta3.Document.Page.lines]
+        // element.
         LINE = 3;
 
-        // References a [Page.tokens][google.cloud.documentai.v1beta3.Document.Page.tokens] element.
+        // References a
+        // [Page.tokens][google.cloud.documentai.v1beta3.Document.Page.tokens]
+        // element.
         TOKEN = 4;
 
-        // References a [Page.visual_elements][google.cloud.documentai.v1beta3.Document.Page.visual_elements] element.
+        // References a
+        // [Page.visual_elements][google.cloud.documentai.v1beta3.Document.Page.visual_elements]
+        // element.
         VISUAL_ELEMENT = 5;
 
-        // Refrrences a [Page.tables][google.cloud.documentai.v1beta3.Document.Page.tables] element.
+        // Refrrences a
+        // [Page.tables][google.cloud.documentai.v1beta3.Document.Page.tables]
+        // element.
         TABLE = 6;
 
-        // References a [Page.form_fields][google.cloud.documentai.v1beta3.Document.Page.form_fields] element.
+        // References a
+        // [Page.form_fields][google.cloud.documentai.v1beta3.Document.Page.form_fields]
+        // element.
         FORM_FIELD = 7;
       }
 
-      // Required. Index into the [Document.pages][google.cloud.documentai.v1beta3.Document.pages] element, for example using
-      // [Document.pages][page_refs.page] to locate the related page element.
-      // This field is skipped when its value is the default 0. See
+      // Required. Index into the
+      // [Document.pages][google.cloud.documentai.v1beta3.Document.pages]
+      // element, for example using
+      // `[Document.pages][page_refs.page]` to locate the related page element.
+      // This field is skipped when its value is the default `0`. See
       // https://developers.google.com/protocol-buffers/docs/proto3#json.
       int64 page = 1 [(google.api.field_behavior) = REQUIRED];
 
-      // Optional. The type of the layout element that is being referenced if any.
+      // Optional. The type of the layout element that is being referenced if
+      // any.
       LayoutType layout_type = 2 [(google.api.field_behavior) = OPTIONAL];
 
-      // Optional. Deprecated.  Use [PageRef.bounding_poly][google.cloud.documentai.v1beta3.Document.PageAnchor.PageRef.bounding_poly] instead.
-      string layout_id = 3 [
-        deprecated = true,
-        (google.api.field_behavior) = OPTIONAL
-      ];
+      // Optional. Deprecated.  Use
+      // [PageRef.bounding_poly][google.cloud.documentai.v1beta3.Document.PageAnchor.PageRef.bounding_poly]
+      // instead.
+      string layout_id = 3
+          [deprecated = true, (google.api.field_behavior) = OPTIONAL];
 
-      // Optional. Identifies the bounding polygon of a layout element on the page.
+      // Optional. Identifies the bounding polygon of a layout element on the
+      // page.
       BoundingPoly bounding_poly = 4 [(google.api.field_behavior) = OPTIONAL];
 
-      // Optional. Confidence of detected page element, if applicable. Range `[0, 1]`.
+      // Optional. Confidence of detected page element, if applicable. Range
+      // `[0, 1]`.
       float confidence = 5 [(google.api.field_behavior) = OPTIONAL];
     }
 
@@ -754,10 +813,11 @@ message Document {
   // This message is used for text changes aka. OCR corrections.
   message TextChange {
     // Provenance of the correction.
-    // Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta3.Document.text].  There can only be a
-    // single `TextAnchor.text_segments` element.  If the start and
-    // end index of the text segment are the same, the text change is inserted
-    // before that index.
+    // Text anchor indexing into the
+    // [Document.text][google.cloud.documentai.v1beta3.Document.text].  There
+    // can only be a single `TextAnchor.text_segments` element.  If the start
+    // and end index of the text segment are the same, the text change is
+    // inserted before that index.
     TextAnchor text_anchor = 1;
 
     // The text that replaces the text identified in the `text_anchor`.
@@ -790,22 +850,27 @@ message Document {
   // Optional. UTF-8 encoded text in reading order from the document.
   string text = 4 [(google.api.field_behavior) = OPTIONAL];
 
-  // Placeholder.  Styles for the [Document.text][google.cloud.documentai.v1beta3.Document.text].
-  repeated Style text_styles = 5;
+  // Styles for the
+  // [Document.text][google.cloud.documentai.v1beta3.Document.text].
+  repeated Style text_styles = 5 [deprecated = true];
 
-  // Visual page layout for the [Document][google.cloud.documentai.v1beta3.Document].
+  // Visual page layout for the
+  // [Document][google.cloud.documentai.v1beta3.Document].
   repeated Page pages = 6;
 
-  // A list of entities detected on [Document.text][google.cloud.documentai.v1beta3.Document.text]. For document shards,
-  // entities in this list may cross shard boundaries.
+  // A list of entities detected on
+  // [Document.text][google.cloud.documentai.v1beta3.Document.text]. For
+  // document shards, entities in this list may cross shard boundaries.
   repeated Entity entities = 7;
 
-  // Placeholder.  Relationship among [Document.entities][google.cloud.documentai.v1beta3.Document.entities].
+  // Placeholder.  Relationship among
+  // [Document.entities][google.cloud.documentai.v1beta3.Document.entities].
   repeated EntityRelation entity_relations = 8;
 
-  // Placeholder.  A list of text corrections made to [Document.text][google.cloud.documentai.v1beta3.Document.text].  This
-  // is usually used for annotating corrections to OCR mistakes.  Text changes
-  // for a given revision may not overlap with each other.
+  // Placeholder.  A list of text corrections made to
+  // [Document.text][google.cloud.documentai.v1beta3.Document.text].  This is
+  // usually used for annotating corrections to OCR mistakes.  Text changes for
+  // a given revision may not overlap with each other.
   repeated TextChange text_changes = 14;
 
   // Information about the sharding if this document is sharded part of a larger
diff --git a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document_io.proto b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document_io.proto
index db905d07079..d6a7fb1c408 100644
--- a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document_io.proto
+++ b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document_io.proto
@@ -101,3 +101,10 @@ message DocumentOutputConfig {
     GcsOutputConfig gcs_output_config = 1;
   }
 }
+
+// Config for Document OCR.
+message OcrConfig {
+  // Enables special handling for PDFs with existing text information. Results
+  // in better text extraction quality in such PDF inputs.
+  bool enable_native_pdf_parsing = 3;
+}
diff --git a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document_processor_service.proto b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document_processor_service.proto
index 34e3380413b..7561517ec0b 100644
--- a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document_processor_service.proto
+++ b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document_processor_service.proto
@@ -54,7 +54,8 @@ option (google.api.resource_definition) = {
 // structured information from unstructured or semi-structured documents.
 service DocumentProcessorService {
   option (google.api.default_host) = "documentai.googleapis.com";
-  option (google.api.oauth_scopes) = "https://www.googleapis.com/auth/cloud-platform";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform";
 
   // Processes a single document.
   rpc ProcessDocument(ProcessRequest) returns (ProcessResponse) {
@@ -71,7 +72,8 @@ service DocumentProcessorService {
 
   // LRO endpoint to batch process many documents. The output is written
   // to Cloud Storage as JSON in the [Document] format.
-  rpc BatchProcessDocuments(BatchProcessRequest) returns (google.longrunning.Operation) {
+  rpc BatchProcessDocuments(BatchProcessRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1beta3/{name=projects/*/locations/*/processors/*}:batchProcess"
       body: "*"
@@ -89,7 +91,8 @@ service DocumentProcessorService {
 
   // Fetches processor types. Note that we do not use ListProcessorTypes here
   // because it is not paginated.
-  rpc FetchProcessorTypes(FetchProcessorTypesRequest) returns (FetchProcessorTypesResponse) {
+  rpc FetchProcessorTypes(FetchProcessorTypesRequest)
+      returns (FetchProcessorTypesResponse) {
     option (google.api.http) = {
       get: "/v1beta3/{parent=projects/*/locations/*}:fetchProcessorTypes"
     };
@@ -97,7 +100,8 @@ service DocumentProcessorService {
   }
 
   // Lists the processor types that exist.
-  rpc ListProcessorTypes(ListProcessorTypesRequest) returns (ListProcessorTypesResponse) {
+  rpc ListProcessorTypes(ListProcessorTypesRequest)
+      returns (ListProcessorTypesResponse) {
     option (google.api.http) = {
       get: "/v1beta3/{parent=projects/*/locations/*}/processorTypes"
     };
@@ -123,7 +127,8 @@ service DocumentProcessorService {
   // Trains a new processor version.
   // Operation metadata is returned as
   // cloud_documentai_core.TrainProcessorVersionMetadata.
-  rpc TrainProcessorVersion(TrainProcessorVersionRequest) returns (google.longrunning.Operation) {
+  rpc TrainProcessorVersion(TrainProcessorVersionRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1beta3/{parent=projects/*/locations/*/processors/*}/processorVersions:train"
       body: "*"
@@ -136,7 +141,8 @@ service DocumentProcessorService {
   }
 
   // Gets a processor version detail.
-  rpc GetProcessorVersion(GetProcessorVersionRequest) returns (ProcessorVersion) {
+  rpc GetProcessorVersion(GetProcessorVersionRequest)
+      returns (ProcessorVersion) {
     option (google.api.http) = {
       get: "/v1beta3/{name=projects/*/locations/*/processors/*/processorVersions/*}"
     };
@@ -144,7 +150,8 @@ service DocumentProcessorService {
   }
 
   // Lists all versions of a processor.
-  rpc ListProcessorVersions(ListProcessorVersionsRequest) returns (ListProcessorVersionsResponse) {
+  rpc ListProcessorVersions(ListProcessorVersionsRequest)
+      returns (ListProcessorVersionsResponse) {
     option (google.api.http) = {
       get: "/v1beta3/{parent=projects/*/locations/*/processors/*}/processorVersions"
     };
@@ -153,7 +160,8 @@ service DocumentProcessorService {
 
   // Deletes the processor version, all artifacts under the processor version
   // will be deleted.
-  rpc DeleteProcessorVersion(DeleteProcessorVersionRequest) returns (google.longrunning.Operation) {
+  rpc DeleteProcessorVersion(DeleteProcessorVersionRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       delete: "/v1beta3/{name=projects/*/locations/*/processors/*/processorVersions/*}"
     };
@@ -165,7 +173,8 @@ service DocumentProcessorService {
   }
 
   // Deploys the processor version.
-  rpc DeployProcessorVersion(DeployProcessorVersionRequest) returns (google.longrunning.Operation) {
+  rpc DeployProcessorVersion(DeployProcessorVersionRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1beta3/{name=projects/*/locations/*/processors/*/processorVersions/*}:deploy"
       body: "*"
@@ -178,7 +187,8 @@ service DocumentProcessorService {
   }
 
   // Undeploys the processor version.
-  rpc UndeployProcessorVersion(UndeployProcessorVersionRequest) returns (google.longrunning.Operation) {
+  rpc UndeployProcessorVersion(UndeployProcessorVersionRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1beta3/{name=projects/*/locations/*/processors/*/processorVersions/*}:undeploy"
       body: "*"
@@ -202,7 +212,8 @@ service DocumentProcessorService {
 
   // Deletes the processor, unloads all deployed model artifacts if it was
   // enabled and then deletes all artifacts associated with this processor.
-  rpc DeleteProcessor(DeleteProcessorRequest) returns (google.longrunning.Operation) {
+  rpc DeleteProcessor(DeleteProcessorRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       delete: "/v1beta3/{name=projects/*/locations/*/processors/*}"
     };
@@ -214,7 +225,8 @@ service DocumentProcessorService {
   }
 
   // Enables a processor
-  rpc EnableProcessor(EnableProcessorRequest) returns (google.longrunning.Operation) {
+  rpc EnableProcessor(EnableProcessorRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1beta3/{name=projects/*/locations/*/processors/*}:enable"
       body: "*"
@@ -226,7 +238,8 @@ service DocumentProcessorService {
   }
 
   // Disables a processor
-  rpc DisableProcessor(DisableProcessorRequest) returns (google.longrunning.Operation) {
+  rpc DisableProcessor(DisableProcessorRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1beta3/{name=projects/*/locations/*/processors/*}:disable"
       body: "*"
@@ -237,10 +250,13 @@ service DocumentProcessorService {
     };
   }
 
-  // Set the default (active) version of a [Processor][google.cloud.documentai.v1beta3.Processor] that will be used in
-  // [ProcessDocument][google.cloud.documentai.v1beta3.DocumentProcessorService.ProcessDocument] and
+  // Set the default (active) version of a
+  // [Processor][google.cloud.documentai.v1beta3.Processor] that will be used in
+  // [ProcessDocument][google.cloud.documentai.v1beta3.DocumentProcessorService.ProcessDocument]
+  // and
   // [BatchProcessDocuments][google.cloud.documentai.v1beta3.DocumentProcessorService.BatchProcessDocuments].
-  rpc SetDefaultProcessorVersion(SetDefaultProcessorVersionRequest) returns (google.longrunning.Operation) {
+  rpc SetDefaultProcessorVersion(SetDefaultProcessorVersionRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1beta3/{processor=projects/*/locations/*/processors/*}:setDefaultProcessorVersion"
       body: "*"
@@ -253,7 +269,8 @@ service DocumentProcessorService {
 
   // Send a document for Human Review. The input document should be processed by
   // the specified processor.
-  rpc ReviewDocument(ReviewDocumentRequest) returns (google.longrunning.Operation) {
+  rpc ReviewDocument(ReviewDocumentRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1beta3/{human_review_config=projects/*/locations/*/processors/*/humanReviewConfig}:reviewDocument"
       body: "*"
@@ -267,7 +284,8 @@ service DocumentProcessorService {
 
   // Evaluates a ProcessorVersion against annotated documents, producing an
   // Evaluation.
-  rpc EvaluateProcessorVersion(EvaluateProcessorVersionRequest) returns (google.longrunning.Operation) {
+  rpc EvaluateProcessorVersion(EvaluateProcessorVersionRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1beta3/{processor_version=projects/*/locations/*/processors/*/processorVersions/*}:evaluateProcessorVersion"
       body: "*"
@@ -288,7 +306,8 @@ service DocumentProcessorService {
   }
 
   // Retrieves a set of evaluations for a given processor version.
-  rpc ListEvaluations(ListEvaluationsRequest) returns (ListEvaluationsResponse) {
+  rpc ListEvaluations(ListEvaluationsRequest)
+      returns (ListEvaluationsResponse) {
     option (google.api.http) = {
       get: "/v1beta3/{parent=projects/*/locations/*/processors/*/processorVersions/*}/evaluations"
     };
@@ -296,6 +315,13 @@ service DocumentProcessorService {
   }
 }
 
+// Options for Process API
+message ProcessOptions {
+  // Only applicable to "Document OCR Processor". Returns error if set on other
+  // processor types.
+  OcrConfig ocr_config = 1;
+}
+
 // Request message for the process document method.
 message ProcessRequest {
   // The document payload.
@@ -307,17 +333,19 @@ message ProcessRequest {
     RawDocument raw_document = 5;
   }
 
-  // Required. The resource name of the [Processor][google.cloud.documentai.v1beta3.Processor] or
+  // Required. The resource name of the
+  // [Processor][google.cloud.documentai.v1beta3.Processor] or
   // [ProcessorVersion][google.cloud.documentai.v1beta3.ProcessorVersion]
-  // to use for processing. If a [Processor][google.cloud.documentai.v1beta3.Processor] is specified, the server will use
-  // its [default version][google.cloud.documentai.v1beta3.Processor.default_processor_version]. Format:
-  // `projects/{project}/locations/{location}/processors/{processor}`, or
+  // to use for processing. If a
+  // [Processor][google.cloud.documentai.v1beta3.Processor] is specified, the
+  // server will use its [default
+  // version][google.cloud.documentai.v1beta3.Processor.default_processor_version].
+  // Format: `projects/{project}/locations/{location}/processors/{processor}`,
+  // or
   // `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
   string name = 1 [
     (google.api.field_behavior) = REQUIRED,
-    (google.api.resource_reference) = {
-      type: "*"
-    }
+    (google.api.resource_reference) = { type: "*" }
   ];
 
   // The document payload, the [content] and [mime_type] fields must be set.
@@ -331,6 +359,9 @@ message ProcessRequest {
   // Only supports top level document and pages field so it must be in the form
   // of `{document_field_name}` or `pages.{page_field_name}`.
   google.protobuf.FieldMask field_mask = 6;
+
+  // Inference-time options for the process API
+  ProcessOptions process_options = 7;
 }
 
 // The status of human review on a processed document.
@@ -408,16 +439,15 @@ message BatchProcessRequest {
     string gcs_destination = 1;
   }
 
-  // Required. The resource name of [Processor][google.cloud.documentai.v1beta3.Processor] or
+  // Required. The resource name of
+  // [Processor][google.cloud.documentai.v1beta3.Processor] or
   // [ProcessorVersion][google.cloud.documentai.v1beta3.ProcessorVersion].
   // Format: `projects/{project}/locations/{location}/processors/{processor}`,
   // or
   // `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
   string name = 1 [
     (google.api.field_behavior) = REQUIRED,
-    (google.api.resource_reference) = {
-      type: "*"
-    }
+    (google.api.resource_reference) = { type: "*" }
   ];
 
   // The input config for each single document in the batch process.
@@ -435,12 +465,13 @@ message BatchProcessRequest {
   // Whether Human Review feature should be skipped for this request. Default to
   // false.
   bool skip_human_review = 4;
+
+  // Inference-time options for the process API
+  ProcessOptions process_options = 7;
 }
 
 // Response message for batch process document method.
-message BatchProcessResponse {
-
-}
+message BatchProcessResponse {}
 
 // The long running operation metadata for batch process method.
 message BatchProcessMetadata {
@@ -561,8 +592,8 @@ message ListProcessorTypesResponse {
 
 // Request message for list all processors belongs to a project.
 message ListProcessorsRequest {
-  // Required. The parent (project and location) which owns this collection of Processors.
-  // Format: `projects/{project}/locations/{location}`
+  // Required. The parent (project and location) which owns this collection of
+  // Processors. Format: `projects/{project}/locations/{location}`
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -613,8 +644,9 @@ message GetProcessorVersionRequest {
 
 // Request message for list all processor versions belongs to a processor.
 message ListProcessorVersionsRequest {
-  // Required. The parent (project, location and processor) to list all versions.
-  // Format: `projects/{project}/locations/{location}/processors/{processor}`
+  // Required. The parent (project, location and processor) to list all
+  // versions. Format:
+  // `projects/{project}/locations/{location}/processors/{processor}`
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -670,9 +702,7 @@ message DeployProcessorVersionRequest {
 }
 
 // Response message for the deploy processor version method.
-message DeployProcessorVersionResponse {
-
-}
+message DeployProcessorVersionResponse {}
 
 // The long running operation metadata for deploy processor version method.
 message DeployProcessorVersionMetadata {
@@ -692,9 +722,7 @@ message UndeployProcessorVersionRequest {
 }
 
 // Response message for the undeploy processor version method.
-message UndeployProcessorVersionResponse {
-
-}
+message UndeployProcessorVersionResponse {}
 
 // The long running operation metadata for the undeploy processor version
 // method.
@@ -707,8 +735,8 @@ message UndeployProcessorVersionMetadata {
 // a regionalized backend service, and if the processor type is not available
 // on that region, the creation will fail.
 message CreateProcessorRequest {
-  // Required. The parent (project and location) under which to create the processor.
-  // Format: `projects/{project}/locations/{location}`
+  // Required. The parent (project and location) under which to create the
+  // processor. Format: `projects/{project}/locations/{location}`
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -716,8 +744,9 @@ message CreateProcessorRequest {
     }
   ];
 
-  // Required. The processor to be created, requires [processor_type] and [display_name]
-  // to be set. Also, the processor is under CMEK if CMEK fields are set.
+  // Required. The processor to be created, requires [processor_type] and
+  // [display_name] to be set. Also, the processor is under CMEK if CMEK fields
+  // are set.
   Processor processor = 2 [(google.api.field_behavior) = REQUIRED];
 }
 
@@ -751,9 +780,7 @@ message EnableProcessorRequest {
 
 // Response message for the enable processor method.
 // Intentionally empty proto for adding fields in future.
-message EnableProcessorResponse {
-
-}
+message EnableProcessorResponse {}
 
 // The long running operation metadata for enable processor method.
 message EnableProcessorMetadata {
@@ -774,9 +801,7 @@ message DisableProcessorRequest {
 
 // Response message for the disable processor method.
 // Intentionally empty proto for adding fields in future.
-message DisableProcessorResponse {
-
-}
+message DisableProcessorResponse {}
 
 // The long running operation metadata for disable processor method.
 message DisableProcessorMetadata {
@@ -786,7 +811,9 @@ message DisableProcessorMetadata {
 
 // Request message for the set default processor version method.
 message SetDefaultProcessorVersionRequest {
-  // Required. The resource name of the [Processor][google.cloud.documentai.v1beta3.Processor] to change default version.
+  // Required. The resource name of the
+  // [Processor][google.cloud.documentai.v1beta3.Processor] to change default
+  // version.
   string processor = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -794,8 +821,9 @@ message SetDefaultProcessorVersionRequest {
     }
   ];
 
-  // Required. The resource name of child [ProcessorVersion][google.cloud.documentai.v1beta3.ProcessorVersion] to use as default.
-  // Format:
+  // Required. The resource name of child
+  // [ProcessorVersion][google.cloud.documentai.v1beta3.ProcessorVersion] to use
+  // as default. Format:
   // `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{version}`
   string default_processor_version = 2 [
     (google.api.field_behavior) = REQUIRED,
@@ -806,9 +834,7 @@ message SetDefaultProcessorVersionRequest {
 }
 
 // Response message for set default processor version method.
-message SetDefaultProcessorVersionResponse {
-
-}
+message SetDefaultProcessorVersionResponse {}
 
 // The long running operation metadata for set default processor version
 // method.
@@ -828,8 +854,9 @@ message TrainProcessorVersionRequest {
     BatchDocumentsInputConfig test_documents = 4;
   }
 
-  // Required. The parent (project, location and processor) to create the new version for.
-  // Format: `projects/{project}/locations/{location}/processors/{processor}`.
+  // Required. The parent (project, location and processor) to create the new
+  // version for. Format:
+  // `projects/{project}/locations/{location}/processors/{processor}`.
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -838,7 +865,8 @@ message TrainProcessorVersionRequest {
   ];
 
   // Required. The processor version to be created.
-  ProcessorVersion processor_version = 2 [(google.api.field_behavior) = REQUIRED];
+  ProcessorVersion processor_version = 2
+      [(google.api.field_behavior) = REQUIRED];
 
   // Optional. The schema the processor version will be trained with.
   DocumentSchema document_schema = 10 [(google.api.field_behavior) = OPTIONAL];
@@ -846,8 +874,8 @@ message TrainProcessorVersionRequest {
   // Optional. The input data used to train the `ProcessorVersion`.
   InputData input_data = 4 [(google.api.field_behavior) = OPTIONAL];
 
-  // Optional. The processor version to use as a base for training. This processor version
-  // must be a child of `parent`. Format:
+  // Optional. The processor version to use as a base for training. This
+  // processor version must be a child of `parent`. Format:
   // `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`.
   string base_processor_version = 8 [(google.api.field_behavior) = OPTIONAL];
 }
@@ -908,8 +936,8 @@ message ReviewDocumentRequest {
     Document inline_document = 4;
   }
 
-  // Required. The resource name of the HumanReviewConfig that the document will be
-  // reviewed with.
+  // Required. The resource name of the HumanReviewConfig that the document will
+  // be reviewed with.
   string human_review_config = 1 [
     (google.api.field_behavior) = REQUIRED,
     (google.api.resource_reference) = {
@@ -1000,7 +1028,9 @@ message ReviewDocumentOperationMetadata {
 
 // Evaluates the given ProcessorVersion against the supplied documents.
 message EvaluateProcessorVersionRequest {
-  // Required. The resource name of the [ProcessorVersion][google.cloud.documentai.v1beta3.ProcessorVersion] to evaluate.
+  // Required. The resource name of the
+  // [ProcessorVersion][google.cloud.documentai.v1beta3.ProcessorVersion] to
+  // evaluate.
   // `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
   string processor_version = 1 [
     (google.api.field_behavior) = REQUIRED,
@@ -1009,9 +1039,10 @@ message EvaluateProcessorVersionRequest {
     }
   ];
 
-  // Optional. The documents used in the evaluation. If unspecified, use the processor's
-  // dataset as evaluation input.
-  BatchDocumentsInputConfig evaluation_documents = 3 [(google.api.field_behavior) = OPTIONAL];
+  // Optional. The documents used in the evaluation. If unspecified, use the
+  // processor's dataset as evaluation input.
+  BatchDocumentsInputConfig evaluation_documents = 3
+      [(google.api.field_behavior) = OPTIONAL];
 }
 
 // Metadata of the EvaluateProcessorVersion method.
@@ -1028,7 +1059,8 @@ message EvaluateProcessorVersionResponse {
 
 // Retrieves a specific Evaluation.
 message GetEvaluationRequest {
-  // Required. The resource name of the [Evaluation][google.cloud.documentai.v1beta3.Evaluation] to get.
+  // Required. The resource name of the
+  // [Evaluation][google.cloud.documentai.v1beta3.Evaluation] to get.
   // `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}/evaluations/{evaluation}`
   string name = 1 [
     (google.api.field_behavior) = REQUIRED,
@@ -1040,7 +1072,9 @@ message GetEvaluationRequest {
 
 // Retrieves a list of evaluations for a given ProcessorVersion.
 message ListEvaluationsRequest {
-  // Required. The resource name of the [ProcessorVersion][google.cloud.documentai.v1beta3.ProcessorVersion] to list evaluations for.
+  // Required. The resource name of the
+  // [ProcessorVersion][google.cloud.documentai.v1beta3.ProcessorVersion] to
+  // list evaluations for.
   // `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
   string parent = 1 [
     (google.api.field_behavior) = REQUIRED,
diff --git a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document_schema.proto b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document_schema.proto
index 1e29f7c89d9..5a470dfa162 100644
--- a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document_schema.proto
+++ b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/document_schema.proto
@@ -88,7 +88,7 @@ message DocumentSchema {
     // conventions:
     //
     // - *use `snake_casing`*
-    // - name matching is case-insensitive
+    // - name matching is case-sensitive
     // - Maximum 64 characters.
     // - Must start with a letter.
     // - Allowed characters: ASCII letters `[a-z0-9_-]`.  (For backward
diff --git a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/processor.proto b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/processor.proto
index db13e89defa..970e2b97969 100644
--- a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/processor.proto
+++ b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/processor.proto
@@ -46,9 +46,10 @@ message ProcessorVersion {
     google.protobuf.Timestamp deprecation_time = 1;
 
     // If set, the processor version that will be used as a replacement.
-    string replacement_processor_version = 2 [(google.api.resource_reference) = {
-                                                type: "documentai.googleapis.com/ProcessorVersion"
-                                              }];
+    string replacement_processor_version = 2
+        [(google.api.resource_reference) = {
+          type: "documentai.googleapis.com/ProcessorVersion"
+        }];
   }
 
   // The possible states of the processor version.
@@ -171,10 +172,11 @@ message Processor {
 
   // The default processor version.
   string default_processor_version = 9 [(google.api.resource_reference) = {
-                                          type: "documentai.googleapis.com/ProcessorVersion"
-                                        }];
+    type: "documentai.googleapis.com/ProcessorVersion"
+  }];
 
-  // Output only. Immutable. The http endpoint that can be called to invoke processing.
+  // Output only. Immutable. The http endpoint that can be called to invoke
+  // processing.
   string process_endpoint = 6 [
     (google.api.field_behavior) = OUTPUT_ONLY,
     (google.api.field_behavior) = IMMUTABLE
diff --git a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/processor_type.proto b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/processor_type.proto
index 9afbf04d481..1d9f6fa3a7d 100644
--- a/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/processor_type.proto
+++ b/packages/google-cloud-documentai/protos/google/cloud/documentai/v1beta3/processor_type.proto
@@ -60,4 +60,7 @@ message ProcessorType {
 
   // Launch stage of the processor type
   google.api.LaunchStage launch_stage = 8;
+
+  // A set of Cloud Storage URIs of sample documents for this processor.
+  repeated string sample_document_uris = 9;
 }
diff --git a/packages/google-cloud-documentai/protos/protos.d.ts b/packages/google-cloud-documentai/protos/protos.d.ts
index 7b6d5593255..f14e7a02b0c 100644
--- a/packages/google-cloud-documentai/protos/protos.d.ts
+++ b/packages/google-cloud-documentai/protos/protos.d.ts
@@ -11188,6 +11188,9 @@ export namespace google {
 
                     /** ProcessorType launchStage */
                     launchStage?: (google.api.LaunchStage|keyof typeof google.api.LaunchStage|null);
+
+                    /** ProcessorType sampleDocumentUris */
+                    sampleDocumentUris?: (string[]|null);
                 }
 
                 /** Represents a ProcessorType. */
@@ -11217,6 +11220,9 @@ export namespace google {
                     /** ProcessorType launchStage. */
                     public launchStage: (google.api.LaunchStage|keyof typeof google.api.LaunchStage);
 
+                    /** ProcessorType sampleDocumentUris. */
+                    public sampleDocumentUris: string[];
+
                     /**
                      * Creates a new ProcessorType instance using the specified properties.
                      * @param [properties] Properties to set
@@ -26398,6 +26404,103 @@ export namespace google {
                     }
                 }
 
+                /** Properties of an OcrConfig. */
+                interface IOcrConfig {
+
+                    /** OcrConfig enableNativePdfParsing */
+                    enableNativePdfParsing?: (boolean|null);
+                }
+
+                /** Represents an OcrConfig. */
+                class OcrConfig implements IOcrConfig {
+
+                    /**
+                     * Constructs a new OcrConfig.
+                     * @param [properties] Properties to set
+                     */
+                    constructor(properties?: google.cloud.documentai.v1beta3.IOcrConfig);
+
+                    /** OcrConfig enableNativePdfParsing. */
+                    public enableNativePdfParsing: boolean;
+
+                    /**
+                     * Creates a new OcrConfig instance using the specified properties.
+                     * @param [properties] Properties to set
+                     * @returns OcrConfig instance
+                     */
+                    public static create(properties?: google.cloud.documentai.v1beta3.IOcrConfig): google.cloud.documentai.v1beta3.OcrConfig;
+
+                    /**
+                     * Encodes the specified OcrConfig message. Does not implicitly {@link google.cloud.documentai.v1beta3.OcrConfig.verify|verify} messages.
+                     * @param message OcrConfig message or plain object to encode
+                     * @param [writer] Writer to encode to
+                     * @returns Writer
+                     */
+                    public static encode(message: google.cloud.documentai.v1beta3.IOcrConfig, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                    /**
+                     * Encodes the specified OcrConfig message, length delimited. Does not implicitly {@link google.cloud.documentai.v1beta3.OcrConfig.verify|verify} messages.
+                     * @param message OcrConfig message or plain object to encode
+                     * @param [writer] Writer to encode to
+                     * @returns Writer
+                     */
+                    public static encodeDelimited(message: google.cloud.documentai.v1beta3.IOcrConfig, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                    /**
+                     * Decodes an OcrConfig message from the specified reader or buffer.
+                     * @param reader Reader or buffer to decode from
+                     * @param [length] Message length if known beforehand
+                     * @returns OcrConfig
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.cloud.documentai.v1beta3.OcrConfig;
+
+                    /**
+                     * Decodes an OcrConfig message from the specified reader or buffer, length delimited.
+                     * @param reader Reader or buffer to decode from
+                     * @returns OcrConfig
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.cloud.documentai.v1beta3.OcrConfig;
+
+                    /**
+                     * Verifies an OcrConfig message.
+                     * @param message Plain object to verify
+                     * @returns `null` if valid, otherwise the reason why it is not
+                     */
+                    public static verify(message: { [k: string]: any }): (string|null);
+
+                    /**
+                     * Creates an OcrConfig message from a plain object. Also converts values to their respective internal types.
+                     * @param object Plain object
+                     * @returns OcrConfig
+                     */
+                    public static fromObject(object: { [k: string]: any }): google.cloud.documentai.v1beta3.OcrConfig;
+
+                    /**
+                     * Creates a plain object from an OcrConfig message. Also converts values to other types if specified.
+                     * @param message OcrConfig
+                     * @param [options] Conversion options
+                     * @returns Plain object
+                     */
+                    public static toObject(message: google.cloud.documentai.v1beta3.OcrConfig, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                    /**
+                     * Converts this OcrConfig to JSON.
+                     * @returns JSON object
+                     */
+                    public toJSON(): { [k: string]: any };
+
+                    /**
+                     * Gets the default type url for OcrConfig
+                     * @param [typeUrlPrefix] your custom typeUrlPrefix(default "type.googleapis.com")
+                     * @returns The default type url
+                     */
+                    public static getTypeUrl(typeUrlPrefix?: string): string;
+                }
+
                 /** Represents a DocumentProcessorService */
                 class DocumentProcessorService extends $protobuf.rpc.Service {
 
@@ -26863,6 +26966,103 @@ export namespace google {
                     type ListEvaluationsCallback = (error: (Error|null), response?: google.cloud.documentai.v1beta3.ListEvaluationsResponse) => void;
                 }
 
+                /** Properties of a ProcessOptions. */
+                interface IProcessOptions {
+
+                    /** ProcessOptions ocrConfig */
+                    ocrConfig?: (google.cloud.documentai.v1beta3.IOcrConfig|null);
+                }
+
+                /** Represents a ProcessOptions. */
+                class ProcessOptions implements IProcessOptions {
+
+                    /**
+                     * Constructs a new ProcessOptions.
+                     * @param [properties] Properties to set
+                     */
+                    constructor(properties?: google.cloud.documentai.v1beta3.IProcessOptions);
+
+                    /** ProcessOptions ocrConfig. */
+                    public ocrConfig?: (google.cloud.documentai.v1beta3.IOcrConfig|null);
+
+                    /**
+                     * Creates a new ProcessOptions instance using the specified properties.
+                     * @param [properties] Properties to set
+                     * @returns ProcessOptions instance
+                     */
+                    public static create(properties?: google.cloud.documentai.v1beta3.IProcessOptions): google.cloud.documentai.v1beta3.ProcessOptions;
+
+                    /**
+                     * Encodes the specified ProcessOptions message. Does not implicitly {@link google.cloud.documentai.v1beta3.ProcessOptions.verify|verify} messages.
+                     * @param message ProcessOptions message or plain object to encode
+                     * @param [writer] Writer to encode to
+                     * @returns Writer
+                     */
+                    public static encode(message: google.cloud.documentai.v1beta3.IProcessOptions, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                    /**
+                     * Encodes the specified ProcessOptions message, length delimited. Does not implicitly {@link google.cloud.documentai.v1beta3.ProcessOptions.verify|verify} messages.
+                     * @param message ProcessOptions message or plain object to encode
+                     * @param [writer] Writer to encode to
+                     * @returns Writer
+                     */
+                    public static encodeDelimited(message: google.cloud.documentai.v1beta3.IProcessOptions, writer?: $protobuf.Writer): $protobuf.Writer;
+
+                    /**
+                     * Decodes a ProcessOptions message from the specified reader or buffer.
+                     * @param reader Reader or buffer to decode from
+                     * @param [length] Message length if known beforehand
+                     * @returns ProcessOptions
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    public static decode(reader: ($protobuf.Reader|Uint8Array), length?: number): google.cloud.documentai.v1beta3.ProcessOptions;
+
+                    /**
+                     * Decodes a ProcessOptions message from the specified reader or buffer, length delimited.
+                     * @param reader Reader or buffer to decode from
+                     * @returns ProcessOptions
+                     * @throws {Error} If the payload is not a reader or valid buffer
+                     * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                     */
+                    public static decodeDelimited(reader: ($protobuf.Reader|Uint8Array)): google.cloud.documentai.v1beta3.ProcessOptions;
+
+                    /**
+                     * Verifies a ProcessOptions message.
+                     * @param message Plain object to verify
+                     * @returns `null` if valid, otherwise the reason why it is not
+                     */
+                    public static verify(message: { [k: string]: any }): (string|null);
+
+                    /**
+                     * Creates a ProcessOptions message from a plain object. Also converts values to their respective internal types.
+                     * @param object Plain object
+                     * @returns ProcessOptions
+                     */
+                    public static fromObject(object: { [k: string]: any }): google.cloud.documentai.v1beta3.ProcessOptions;
+
+                    /**
+                     * Creates a plain object from a ProcessOptions message. Also converts values to other types if specified.
+                     * @param message ProcessOptions
+                     * @param [options] Conversion options
+                     * @returns Plain object
+                     */
+                    public static toObject(message: google.cloud.documentai.v1beta3.ProcessOptions, options?: $protobuf.IConversionOptions): { [k: string]: any };
+
+                    /**
+                     * Converts this ProcessOptions to JSON.
+                     * @returns JSON object
+                     */
+                    public toJSON(): { [k: string]: any };
+
+                    /**
+                     * Gets the default type url for ProcessOptions
+                     * @param [typeUrlPrefix] your custom typeUrlPrefix(default "type.googleapis.com")
+                     * @returns The default type url
+                     */
+                    public static getTypeUrl(typeUrlPrefix?: string): string;
+                }
+
                 /** Properties of a ProcessRequest. */
                 interface IProcessRequest {
 
@@ -26883,6 +27083,9 @@ export namespace google {
 
                     /** ProcessRequest fieldMask */
                     fieldMask?: (google.protobuf.IFieldMask|null);
+
+                    /** ProcessRequest processOptions */
+                    processOptions?: (google.cloud.documentai.v1beta3.IProcessOptions|null);
                 }
 
                 /** Represents a ProcessRequest. */
@@ -26912,6 +27115,9 @@ export namespace google {
                     /** ProcessRequest fieldMask. */
                     public fieldMask?: (google.protobuf.IFieldMask|null);
 
+                    /** ProcessRequest processOptions. */
+                    public processOptions?: (google.cloud.documentai.v1beta3.IProcessOptions|null);
+
                     /** ProcessRequest source. */
                     public source?: ("inlineDocument"|"rawDocument");
 
@@ -27243,6 +27449,9 @@ export namespace google {
 
                     /** BatchProcessRequest skipHumanReview */
                     skipHumanReview?: (boolean|null);
+
+                    /** BatchProcessRequest processOptions */
+                    processOptions?: (google.cloud.documentai.v1beta3.IProcessOptions|null);
                 }
 
                 /** Represents a BatchProcessRequest. */
@@ -27272,6 +27481,9 @@ export namespace google {
                     /** BatchProcessRequest skipHumanReview. */
                     public skipHumanReview: boolean;
 
+                    /** BatchProcessRequest processOptions. */
+                    public processOptions?: (google.cloud.documentai.v1beta3.IProcessOptions|null);
+
                     /**
                      * Creates a new BatchProcessRequest instance using the specified properties.
                      * @param [properties] Properties to set
@@ -34203,6 +34415,9 @@ export namespace google {
 
                     /** ProcessorType launchStage */
                     launchStage?: (google.api.LaunchStage|keyof typeof google.api.LaunchStage|null);
+
+                    /** ProcessorType sampleDocumentUris */
+                    sampleDocumentUris?: (string[]|null);
                 }
 
                 /** Represents a ProcessorType. */
@@ -34232,6 +34447,9 @@ export namespace google {
                     /** ProcessorType launchStage. */
                     public launchStage: (google.api.LaunchStage|keyof typeof google.api.LaunchStage);
 
+                    /** ProcessorType sampleDocumentUris. */
+                    public sampleDocumentUris: string[];
+
                     /**
                      * Creates a new ProcessorType instance using the specified properties.
                      * @param [properties] Properties to set
diff --git a/packages/google-cloud-documentai/protos/protos.js b/packages/google-cloud-documentai/protos/protos.js
index 24edb0743e3..59e7d476aef 100644
--- a/packages/google-cloud-documentai/protos/protos.js
+++ b/packages/google-cloud-documentai/protos/protos.js
@@ -27247,6 +27247,7 @@
                          * @property {Array.<google.cloud.documentai.v1.ProcessorType.ILocationInfo>|null} [availableLocations] ProcessorType availableLocations
                          * @property {boolean|null} [allowCreation] ProcessorType allowCreation
                          * @property {google.api.LaunchStage|null} [launchStage] ProcessorType launchStage
+                         * @property {Array.<string>|null} [sampleDocumentUris] ProcessorType sampleDocumentUris
                          */
     
                         /**
@@ -27259,6 +27260,7 @@
                          */
                         function ProcessorType(properties) {
                             this.availableLocations = [];
+                            this.sampleDocumentUris = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
                                     if (properties[keys[i]] != null)
@@ -27313,6 +27315,14 @@
                          */
                         ProcessorType.prototype.launchStage = 0;
     
+                        /**
+                         * ProcessorType sampleDocumentUris.
+                         * @member {Array.<string>} sampleDocumentUris
+                         * @memberof google.cloud.documentai.v1.ProcessorType
+                         * @instance
+                         */
+                        ProcessorType.prototype.sampleDocumentUris = $util.emptyArray;
+    
                         /**
                          * Creates a new ProcessorType instance using the specified properties.
                          * @function create
@@ -27350,6 +27360,9 @@
                                 writer.uint32(/* id 6, wireType 0 =*/48).bool(message.allowCreation);
                             if (message.launchStage != null && Object.hasOwnProperty.call(message, "launchStage"))
                                 writer.uint32(/* id 8, wireType 0 =*/64).int32(message.launchStage);
+                            if (message.sampleDocumentUris != null && message.sampleDocumentUris.length)
+                                for (var i = 0; i < message.sampleDocumentUris.length; ++i)
+                                    writer.uint32(/* id 9, wireType 2 =*/74).string(message.sampleDocumentUris[i]);
                             return writer;
                         };
     
@@ -27410,6 +27423,12 @@
                                         message.launchStage = reader.int32();
                                         break;
                                     }
+                                case 9: {
+                                        if (!(message.sampleDocumentUris && message.sampleDocumentUris.length))
+                                            message.sampleDocumentUris = [];
+                                        message.sampleDocumentUris.push(reader.string());
+                                        break;
+                                    }
                                 default:
                                     reader.skipType(tag & 7);
                                     break;
@@ -27480,6 +27499,13 @@
                                 case 5:
                                     break;
                                 }
+                            if (message.sampleDocumentUris != null && message.hasOwnProperty("sampleDocumentUris")) {
+                                if (!Array.isArray(message.sampleDocumentUris))
+                                    return "sampleDocumentUris: array expected";
+                                for (var i = 0; i < message.sampleDocumentUris.length; ++i)
+                                    if (!$util.isString(message.sampleDocumentUris[i]))
+                                        return "sampleDocumentUris: string[] expected";
+                            }
                             return null;
                         };
     
@@ -27553,6 +27579,13 @@
                                 message.launchStage = 5;
                                 break;
                             }
+                            if (object.sampleDocumentUris) {
+                                if (!Array.isArray(object.sampleDocumentUris))
+                                    throw TypeError(".google.cloud.documentai.v1.ProcessorType.sampleDocumentUris: array expected");
+                                message.sampleDocumentUris = [];
+                                for (var i = 0; i < object.sampleDocumentUris.length; ++i)
+                                    message.sampleDocumentUris[i] = String(object.sampleDocumentUris[i]);
+                            }
                             return message;
                         };
     
@@ -27569,8 +27602,10 @@
                             if (!options)
                                 options = {};
                             var object = {};
-                            if (options.arrays || options.defaults)
+                            if (options.arrays || options.defaults) {
                                 object.availableLocations = [];
+                                object.sampleDocumentUris = [];
+                            }
                             if (options.defaults) {
                                 object.name = "";
                                 object.type = "";
@@ -27593,6 +27628,11 @@
                                 object.allowCreation = message.allowCreation;
                             if (message.launchStage != null && message.hasOwnProperty("launchStage"))
                                 object.launchStage = options.enums === String ? $root.google.api.LaunchStage[message.launchStage] === undefined ? message.launchStage : $root.google.api.LaunchStage[message.launchStage] : message.launchStage;
+                            if (message.sampleDocumentUris && message.sampleDocumentUris.length) {
+                                object.sampleDocumentUris = [];
+                                for (var j = 0; j < message.sampleDocumentUris.length; ++j)
+                                    object.sampleDocumentUris[j] = message.sampleDocumentUris[j];
+                            }
                             return object;
                         };
     
@@ -66108,6 +66148,209 @@
                         return DocumentOutputConfig;
                     })();
     
+                    v1beta3.OcrConfig = (function() {
+    
+                        /**
+                         * Properties of an OcrConfig.
+                         * @memberof google.cloud.documentai.v1beta3
+                         * @interface IOcrConfig
+                         * @property {boolean|null} [enableNativePdfParsing] OcrConfig enableNativePdfParsing
+                         */
+    
+                        /**
+                         * Constructs a new OcrConfig.
+                         * @memberof google.cloud.documentai.v1beta3
+                         * @classdesc Represents an OcrConfig.
+                         * @implements IOcrConfig
+                         * @constructor
+                         * @param {google.cloud.documentai.v1beta3.IOcrConfig=} [properties] Properties to set
+                         */
+                        function OcrConfig(properties) {
+                            if (properties)
+                                for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                    if (properties[keys[i]] != null)
+                                        this[keys[i]] = properties[keys[i]];
+                        }
+    
+                        /**
+                         * OcrConfig enableNativePdfParsing.
+                         * @member {boolean} enableNativePdfParsing
+                         * @memberof google.cloud.documentai.v1beta3.OcrConfig
+                         * @instance
+                         */
+                        OcrConfig.prototype.enableNativePdfParsing = false;
+    
+                        /**
+                         * Creates a new OcrConfig instance using the specified properties.
+                         * @function create
+                         * @memberof google.cloud.documentai.v1beta3.OcrConfig
+                         * @static
+                         * @param {google.cloud.documentai.v1beta3.IOcrConfig=} [properties] Properties to set
+                         * @returns {google.cloud.documentai.v1beta3.OcrConfig} OcrConfig instance
+                         */
+                        OcrConfig.create = function create(properties) {
+                            return new OcrConfig(properties);
+                        };
+    
+                        /**
+                         * Encodes the specified OcrConfig message. Does not implicitly {@link google.cloud.documentai.v1beta3.OcrConfig.verify|verify} messages.
+                         * @function encode
+                         * @memberof google.cloud.documentai.v1beta3.OcrConfig
+                         * @static
+                         * @param {google.cloud.documentai.v1beta3.IOcrConfig} message OcrConfig message or plain object to encode
+                         * @param {$protobuf.Writer} [writer] Writer to encode to
+                         * @returns {$protobuf.Writer} Writer
+                         */
+                        OcrConfig.encode = function encode(message, writer) {
+                            if (!writer)
+                                writer = $Writer.create();
+                            if (message.enableNativePdfParsing != null && Object.hasOwnProperty.call(message, "enableNativePdfParsing"))
+                                writer.uint32(/* id 3, wireType 0 =*/24).bool(message.enableNativePdfParsing);
+                            return writer;
+                        };
+    
+                        /**
+                         * Encodes the specified OcrConfig message, length delimited. Does not implicitly {@link google.cloud.documentai.v1beta3.OcrConfig.verify|verify} messages.
+                         * @function encodeDelimited
+                         * @memberof google.cloud.documentai.v1beta3.OcrConfig
+                         * @static
+                         * @param {google.cloud.documentai.v1beta3.IOcrConfig} message OcrConfig message or plain object to encode
+                         * @param {$protobuf.Writer} [writer] Writer to encode to
+                         * @returns {$protobuf.Writer} Writer
+                         */
+                        OcrConfig.encodeDelimited = function encodeDelimited(message, writer) {
+                            return this.encode(message, writer).ldelim();
+                        };
+    
+                        /**
+                         * Decodes an OcrConfig message from the specified reader or buffer.
+                         * @function decode
+                         * @memberof google.cloud.documentai.v1beta3.OcrConfig
+                         * @static
+                         * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                         * @param {number} [length] Message length if known beforehand
+                         * @returns {google.cloud.documentai.v1beta3.OcrConfig} OcrConfig
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        OcrConfig.decode = function decode(reader, length) {
+                            if (!(reader instanceof $Reader))
+                                reader = $Reader.create(reader);
+                            var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.cloud.documentai.v1beta3.OcrConfig();
+                            while (reader.pos < end) {
+                                var tag = reader.uint32();
+                                switch (tag >>> 3) {
+                                case 3: {
+                                        message.enableNativePdfParsing = reader.bool();
+                                        break;
+                                    }
+                                default:
+                                    reader.skipType(tag & 7);
+                                    break;
+                                }
+                            }
+                            return message;
+                        };
+    
+                        /**
+                         * Decodes an OcrConfig message from the specified reader or buffer, length delimited.
+                         * @function decodeDelimited
+                         * @memberof google.cloud.documentai.v1beta3.OcrConfig
+                         * @static
+                         * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                         * @returns {google.cloud.documentai.v1beta3.OcrConfig} OcrConfig
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        OcrConfig.decodeDelimited = function decodeDelimited(reader) {
+                            if (!(reader instanceof $Reader))
+                                reader = new $Reader(reader);
+                            return this.decode(reader, reader.uint32());
+                        };
+    
+                        /**
+                         * Verifies an OcrConfig message.
+                         * @function verify
+                         * @memberof google.cloud.documentai.v1beta3.OcrConfig
+                         * @static
+                         * @param {Object.<string,*>} message Plain object to verify
+                         * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                         */
+                        OcrConfig.verify = function verify(message) {
+                            if (typeof message !== "object" || message === null)
+                                return "object expected";
+                            if (message.enableNativePdfParsing != null && message.hasOwnProperty("enableNativePdfParsing"))
+                                if (typeof message.enableNativePdfParsing !== "boolean")
+                                    return "enableNativePdfParsing: boolean expected";
+                            return null;
+                        };
+    
+                        /**
+                         * Creates an OcrConfig message from a plain object. Also converts values to their respective internal types.
+                         * @function fromObject
+                         * @memberof google.cloud.documentai.v1beta3.OcrConfig
+                         * @static
+                         * @param {Object.<string,*>} object Plain object
+                         * @returns {google.cloud.documentai.v1beta3.OcrConfig} OcrConfig
+                         */
+                        OcrConfig.fromObject = function fromObject(object) {
+                            if (object instanceof $root.google.cloud.documentai.v1beta3.OcrConfig)
+                                return object;
+                            var message = new $root.google.cloud.documentai.v1beta3.OcrConfig();
+                            if (object.enableNativePdfParsing != null)
+                                message.enableNativePdfParsing = Boolean(object.enableNativePdfParsing);
+                            return message;
+                        };
+    
+                        /**
+                         * Creates a plain object from an OcrConfig message. Also converts values to other types if specified.
+                         * @function toObject
+                         * @memberof google.cloud.documentai.v1beta3.OcrConfig
+                         * @static
+                         * @param {google.cloud.documentai.v1beta3.OcrConfig} message OcrConfig
+                         * @param {$protobuf.IConversionOptions} [options] Conversion options
+                         * @returns {Object.<string,*>} Plain object
+                         */
+                        OcrConfig.toObject = function toObject(message, options) {
+                            if (!options)
+                                options = {};
+                            var object = {};
+                            if (options.defaults)
+                                object.enableNativePdfParsing = false;
+                            if (message.enableNativePdfParsing != null && message.hasOwnProperty("enableNativePdfParsing"))
+                                object.enableNativePdfParsing = message.enableNativePdfParsing;
+                            return object;
+                        };
+    
+                        /**
+                         * Converts this OcrConfig to JSON.
+                         * @function toJSON
+                         * @memberof google.cloud.documentai.v1beta3.OcrConfig
+                         * @instance
+                         * @returns {Object.<string,*>} JSON object
+                         */
+                        OcrConfig.prototype.toJSON = function toJSON() {
+                            return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                        };
+    
+                        /**
+                         * Gets the default type url for OcrConfig
+                         * @function getTypeUrl
+                         * @memberof google.cloud.documentai.v1beta3.OcrConfig
+                         * @static
+                         * @param {string} [typeUrlPrefix] your custom typeUrlPrefix(default "type.googleapis.com")
+                         * @returns {string} The default type url
+                         */
+                        OcrConfig.getTypeUrl = function getTypeUrl(typeUrlPrefix) {
+                            if (typeUrlPrefix === undefined) {
+                                typeUrlPrefix = "type.googleapis.com";
+                            }
+                            return typeUrlPrefix + "/google.cloud.documentai.v1beta3.OcrConfig";
+                        };
+    
+                        return OcrConfig;
+                    })();
+    
                     v1beta3.DocumentProcessorService = (function() {
     
                         /**
@@ -66836,6 +67079,214 @@
                         return DocumentProcessorService;
                     })();
     
+                    v1beta3.ProcessOptions = (function() {
+    
+                        /**
+                         * Properties of a ProcessOptions.
+                         * @memberof google.cloud.documentai.v1beta3
+                         * @interface IProcessOptions
+                         * @property {google.cloud.documentai.v1beta3.IOcrConfig|null} [ocrConfig] ProcessOptions ocrConfig
+                         */
+    
+                        /**
+                         * Constructs a new ProcessOptions.
+                         * @memberof google.cloud.documentai.v1beta3
+                         * @classdesc Represents a ProcessOptions.
+                         * @implements IProcessOptions
+                         * @constructor
+                         * @param {google.cloud.documentai.v1beta3.IProcessOptions=} [properties] Properties to set
+                         */
+                        function ProcessOptions(properties) {
+                            if (properties)
+                                for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
+                                    if (properties[keys[i]] != null)
+                                        this[keys[i]] = properties[keys[i]];
+                        }
+    
+                        /**
+                         * ProcessOptions ocrConfig.
+                         * @member {google.cloud.documentai.v1beta3.IOcrConfig|null|undefined} ocrConfig
+                         * @memberof google.cloud.documentai.v1beta3.ProcessOptions
+                         * @instance
+                         */
+                        ProcessOptions.prototype.ocrConfig = null;
+    
+                        /**
+                         * Creates a new ProcessOptions instance using the specified properties.
+                         * @function create
+                         * @memberof google.cloud.documentai.v1beta3.ProcessOptions
+                         * @static
+                         * @param {google.cloud.documentai.v1beta3.IProcessOptions=} [properties] Properties to set
+                         * @returns {google.cloud.documentai.v1beta3.ProcessOptions} ProcessOptions instance
+                         */
+                        ProcessOptions.create = function create(properties) {
+                            return new ProcessOptions(properties);
+                        };
+    
+                        /**
+                         * Encodes the specified ProcessOptions message. Does not implicitly {@link google.cloud.documentai.v1beta3.ProcessOptions.verify|verify} messages.
+                         * @function encode
+                         * @memberof google.cloud.documentai.v1beta3.ProcessOptions
+                         * @static
+                         * @param {google.cloud.documentai.v1beta3.IProcessOptions} message ProcessOptions message or plain object to encode
+                         * @param {$protobuf.Writer} [writer] Writer to encode to
+                         * @returns {$protobuf.Writer} Writer
+                         */
+                        ProcessOptions.encode = function encode(message, writer) {
+                            if (!writer)
+                                writer = $Writer.create();
+                            if (message.ocrConfig != null && Object.hasOwnProperty.call(message, "ocrConfig"))
+                                $root.google.cloud.documentai.v1beta3.OcrConfig.encode(message.ocrConfig, writer.uint32(/* id 1, wireType 2 =*/10).fork()).ldelim();
+                            return writer;
+                        };
+    
+                        /**
+                         * Encodes the specified ProcessOptions message, length delimited. Does not implicitly {@link google.cloud.documentai.v1beta3.ProcessOptions.verify|verify} messages.
+                         * @function encodeDelimited
+                         * @memberof google.cloud.documentai.v1beta3.ProcessOptions
+                         * @static
+                         * @param {google.cloud.documentai.v1beta3.IProcessOptions} message ProcessOptions message or plain object to encode
+                         * @param {$protobuf.Writer} [writer] Writer to encode to
+                         * @returns {$protobuf.Writer} Writer
+                         */
+                        ProcessOptions.encodeDelimited = function encodeDelimited(message, writer) {
+                            return this.encode(message, writer).ldelim();
+                        };
+    
+                        /**
+                         * Decodes a ProcessOptions message from the specified reader or buffer.
+                         * @function decode
+                         * @memberof google.cloud.documentai.v1beta3.ProcessOptions
+                         * @static
+                         * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                         * @param {number} [length] Message length if known beforehand
+                         * @returns {google.cloud.documentai.v1beta3.ProcessOptions} ProcessOptions
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        ProcessOptions.decode = function decode(reader, length) {
+                            if (!(reader instanceof $Reader))
+                                reader = $Reader.create(reader);
+                            var end = length === undefined ? reader.len : reader.pos + length, message = new $root.google.cloud.documentai.v1beta3.ProcessOptions();
+                            while (reader.pos < end) {
+                                var tag = reader.uint32();
+                                switch (tag >>> 3) {
+                                case 1: {
+                                        message.ocrConfig = $root.google.cloud.documentai.v1beta3.OcrConfig.decode(reader, reader.uint32());
+                                        break;
+                                    }
+                                default:
+                                    reader.skipType(tag & 7);
+                                    break;
+                                }
+                            }
+                            return message;
+                        };
+    
+                        /**
+                         * Decodes a ProcessOptions message from the specified reader or buffer, length delimited.
+                         * @function decodeDelimited
+                         * @memberof google.cloud.documentai.v1beta3.ProcessOptions
+                         * @static
+                         * @param {$protobuf.Reader|Uint8Array} reader Reader or buffer to decode from
+                         * @returns {google.cloud.documentai.v1beta3.ProcessOptions} ProcessOptions
+                         * @throws {Error} If the payload is not a reader or valid buffer
+                         * @throws {$protobuf.util.ProtocolError} If required fields are missing
+                         */
+                        ProcessOptions.decodeDelimited = function decodeDelimited(reader) {
+                            if (!(reader instanceof $Reader))
+                                reader = new $Reader(reader);
+                            return this.decode(reader, reader.uint32());
+                        };
+    
+                        /**
+                         * Verifies a ProcessOptions message.
+                         * @function verify
+                         * @memberof google.cloud.documentai.v1beta3.ProcessOptions
+                         * @static
+                         * @param {Object.<string,*>} message Plain object to verify
+                         * @returns {string|null} `null` if valid, otherwise the reason why it is not
+                         */
+                        ProcessOptions.verify = function verify(message) {
+                            if (typeof message !== "object" || message === null)
+                                return "object expected";
+                            if (message.ocrConfig != null && message.hasOwnProperty("ocrConfig")) {
+                                var error = $root.google.cloud.documentai.v1beta3.OcrConfig.verify(message.ocrConfig);
+                                if (error)
+                                    return "ocrConfig." + error;
+                            }
+                            return null;
+                        };
+    
+                        /**
+                         * Creates a ProcessOptions message from a plain object. Also converts values to their respective internal types.
+                         * @function fromObject
+                         * @memberof google.cloud.documentai.v1beta3.ProcessOptions
+                         * @static
+                         * @param {Object.<string,*>} object Plain object
+                         * @returns {google.cloud.documentai.v1beta3.ProcessOptions} ProcessOptions
+                         */
+                        ProcessOptions.fromObject = function fromObject(object) {
+                            if (object instanceof $root.google.cloud.documentai.v1beta3.ProcessOptions)
+                                return object;
+                            var message = new $root.google.cloud.documentai.v1beta3.ProcessOptions();
+                            if (object.ocrConfig != null) {
+                                if (typeof object.ocrConfig !== "object")
+                                    throw TypeError(".google.cloud.documentai.v1beta3.ProcessOptions.ocrConfig: object expected");
+                                message.ocrConfig = $root.google.cloud.documentai.v1beta3.OcrConfig.fromObject(object.ocrConfig);
+                            }
+                            return message;
+                        };
+    
+                        /**
+                         * Creates a plain object from a ProcessOptions message. Also converts values to other types if specified.
+                         * @function toObject
+                         * @memberof google.cloud.documentai.v1beta3.ProcessOptions
+                         * @static
+                         * @param {google.cloud.documentai.v1beta3.ProcessOptions} message ProcessOptions
+                         * @param {$protobuf.IConversionOptions} [options] Conversion options
+                         * @returns {Object.<string,*>} Plain object
+                         */
+                        ProcessOptions.toObject = function toObject(message, options) {
+                            if (!options)
+                                options = {};
+                            var object = {};
+                            if (options.defaults)
+                                object.ocrConfig = null;
+                            if (message.ocrConfig != null && message.hasOwnProperty("ocrConfig"))
+                                object.ocrConfig = $root.google.cloud.documentai.v1beta3.OcrConfig.toObject(message.ocrConfig, options);
+                            return object;
+                        };
+    
+                        /**
+                         * Converts this ProcessOptions to JSON.
+                         * @function toJSON
+                         * @memberof google.cloud.documentai.v1beta3.ProcessOptions
+                         * @instance
+                         * @returns {Object.<string,*>} JSON object
+                         */
+                        ProcessOptions.prototype.toJSON = function toJSON() {
+                            return this.constructor.toObject(this, $protobuf.util.toJSONOptions);
+                        };
+    
+                        /**
+                         * Gets the default type url for ProcessOptions
+                         * @function getTypeUrl
+                         * @memberof google.cloud.documentai.v1beta3.ProcessOptions
+                         * @static
+                         * @param {string} [typeUrlPrefix] your custom typeUrlPrefix(default "type.googleapis.com")
+                         * @returns {string} The default type url
+                         */
+                        ProcessOptions.getTypeUrl = function getTypeUrl(typeUrlPrefix) {
+                            if (typeUrlPrefix === undefined) {
+                                typeUrlPrefix = "type.googleapis.com";
+                            }
+                            return typeUrlPrefix + "/google.cloud.documentai.v1beta3.ProcessOptions";
+                        };
+    
+                        return ProcessOptions;
+                    })();
+    
                     v1beta3.ProcessRequest = (function() {
     
                         /**
@@ -66848,6 +67299,7 @@
                          * @property {google.cloud.documentai.v1beta3.IDocument|null} [document] ProcessRequest document
                          * @property {boolean|null} [skipHumanReview] ProcessRequest skipHumanReview
                          * @property {google.protobuf.IFieldMask|null} [fieldMask] ProcessRequest fieldMask
+                         * @property {google.cloud.documentai.v1beta3.IProcessOptions|null} [processOptions] ProcessRequest processOptions
                          */
     
                         /**
@@ -66913,6 +67365,14 @@
                          */
                         ProcessRequest.prototype.fieldMask = null;
     
+                        /**
+                         * ProcessRequest processOptions.
+                         * @member {google.cloud.documentai.v1beta3.IProcessOptions|null|undefined} processOptions
+                         * @memberof google.cloud.documentai.v1beta3.ProcessRequest
+                         * @instance
+                         */
+                        ProcessRequest.prototype.processOptions = null;
+    
                         // OneOf field names bound to virtual getters and setters
                         var $oneOfFields;
     
@@ -66963,6 +67423,8 @@
                                 $root.google.cloud.documentai.v1beta3.RawDocument.encode(message.rawDocument, writer.uint32(/* id 5, wireType 2 =*/42).fork()).ldelim();
                             if (message.fieldMask != null && Object.hasOwnProperty.call(message, "fieldMask"))
                                 $root.google.protobuf.FieldMask.encode(message.fieldMask, writer.uint32(/* id 6, wireType 2 =*/50).fork()).ldelim();
+                            if (message.processOptions != null && Object.hasOwnProperty.call(message, "processOptions"))
+                                $root.google.cloud.documentai.v1beta3.ProcessOptions.encode(message.processOptions, writer.uint32(/* id 7, wireType 2 =*/58).fork()).ldelim();
                             return writer;
                         };
     
@@ -67021,6 +67483,10 @@
                                         message.fieldMask = $root.google.protobuf.FieldMask.decode(reader, reader.uint32());
                                         break;
                                     }
+                                case 7: {
+                                        message.processOptions = $root.google.cloud.documentai.v1beta3.ProcessOptions.decode(reader, reader.uint32());
+                                        break;
+                                    }
                                 default:
                                     reader.skipType(tag & 7);
                                     break;
@@ -67091,6 +67557,11 @@
                                 if (error)
                                     return "fieldMask." + error;
                             }
+                            if (message.processOptions != null && message.hasOwnProperty("processOptions")) {
+                                var error = $root.google.cloud.documentai.v1beta3.ProcessOptions.verify(message.processOptions);
+                                if (error)
+                                    return "processOptions." + error;
+                            }
                             return null;
                         };
     
@@ -67130,6 +67601,11 @@
                                     throw TypeError(".google.cloud.documentai.v1beta3.ProcessRequest.fieldMask: object expected");
                                 message.fieldMask = $root.google.protobuf.FieldMask.fromObject(object.fieldMask);
                             }
+                            if (object.processOptions != null) {
+                                if (typeof object.processOptions !== "object")
+                                    throw TypeError(".google.cloud.documentai.v1beta3.ProcessRequest.processOptions: object expected");
+                                message.processOptions = $root.google.cloud.documentai.v1beta3.ProcessOptions.fromObject(object.processOptions);
+                            }
                             return message;
                         };
     
@@ -67151,6 +67627,7 @@
                                 object.document = null;
                                 object.skipHumanReview = false;
                                 object.fieldMask = null;
+                                object.processOptions = null;
                             }
                             if (message.name != null && message.hasOwnProperty("name"))
                                 object.name = message.name;
@@ -67170,6 +67647,8 @@
                             }
                             if (message.fieldMask != null && message.hasOwnProperty("fieldMask"))
                                 object.fieldMask = $root.google.protobuf.FieldMask.toObject(message.fieldMask, options);
+                            if (message.processOptions != null && message.hasOwnProperty("processOptions"))
+                                object.processOptions = $root.google.cloud.documentai.v1beta3.ProcessOptions.toObject(message.processOptions, options);
                             return object;
                         };
     
@@ -67778,6 +68257,7 @@
                          * @property {google.cloud.documentai.v1beta3.IBatchDocumentsInputConfig|null} [inputDocuments] BatchProcessRequest inputDocuments
                          * @property {google.cloud.documentai.v1beta3.IDocumentOutputConfig|null} [documentOutputConfig] BatchProcessRequest documentOutputConfig
                          * @property {boolean|null} [skipHumanReview] BatchProcessRequest skipHumanReview
+                         * @property {google.cloud.documentai.v1beta3.IProcessOptions|null} [processOptions] BatchProcessRequest processOptions
                          */
     
                         /**
@@ -67844,6 +68324,14 @@
                          */
                         BatchProcessRequest.prototype.skipHumanReview = false;
     
+                        /**
+                         * BatchProcessRequest processOptions.
+                         * @member {google.cloud.documentai.v1beta3.IProcessOptions|null|undefined} processOptions
+                         * @memberof google.cloud.documentai.v1beta3.BatchProcessRequest
+                         * @instance
+                         */
+                        BatchProcessRequest.prototype.processOptions = null;
+    
                         /**
                          * Creates a new BatchProcessRequest instance using the specified properties.
                          * @function create
@@ -67881,6 +68369,8 @@
                                 $root.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig.encode(message.inputDocuments, writer.uint32(/* id 5, wireType 2 =*/42).fork()).ldelim();
                             if (message.documentOutputConfig != null && Object.hasOwnProperty.call(message, "documentOutputConfig"))
                                 $root.google.cloud.documentai.v1beta3.DocumentOutputConfig.encode(message.documentOutputConfig, writer.uint32(/* id 6, wireType 2 =*/50).fork()).ldelim();
+                            if (message.processOptions != null && Object.hasOwnProperty.call(message, "processOptions"))
+                                $root.google.cloud.documentai.v1beta3.ProcessOptions.encode(message.processOptions, writer.uint32(/* id 7, wireType 2 =*/58).fork()).ldelim();
                             return writer;
                         };
     
@@ -67941,6 +68431,10 @@
                                         message.skipHumanReview = reader.bool();
                                         break;
                                     }
+                                case 7: {
+                                        message.processOptions = $root.google.cloud.documentai.v1beta3.ProcessOptions.decode(reader, reader.uint32());
+                                        break;
+                                    }
                                 default:
                                     reader.skipType(tag & 7);
                                     break;
@@ -68006,6 +68500,11 @@
                             if (message.skipHumanReview != null && message.hasOwnProperty("skipHumanReview"))
                                 if (typeof message.skipHumanReview !== "boolean")
                                     return "skipHumanReview: boolean expected";
+                            if (message.processOptions != null && message.hasOwnProperty("processOptions")) {
+                                var error = $root.google.cloud.documentai.v1beta3.ProcessOptions.verify(message.processOptions);
+                                if (error)
+                                    return "processOptions." + error;
+                            }
                             return null;
                         };
     
@@ -68050,6 +68549,11 @@
                             }
                             if (object.skipHumanReview != null)
                                 message.skipHumanReview = Boolean(object.skipHumanReview);
+                            if (object.processOptions != null) {
+                                if (typeof object.processOptions !== "object")
+                                    throw TypeError(".google.cloud.documentai.v1beta3.BatchProcessRequest.processOptions: object expected");
+                                message.processOptions = $root.google.cloud.documentai.v1beta3.ProcessOptions.fromObject(object.processOptions);
+                            }
                             return message;
                         };
     
@@ -68074,6 +68578,7 @@
                                 object.skipHumanReview = false;
                                 object.inputDocuments = null;
                                 object.documentOutputConfig = null;
+                                object.processOptions = null;
                             }
                             if (message.name != null && message.hasOwnProperty("name"))
                                 object.name = message.name;
@@ -68090,6 +68595,8 @@
                                 object.inputDocuments = $root.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig.toObject(message.inputDocuments, options);
                             if (message.documentOutputConfig != null && message.hasOwnProperty("documentOutputConfig"))
                                 object.documentOutputConfig = $root.google.cloud.documentai.v1beta3.DocumentOutputConfig.toObject(message.documentOutputConfig, options);
+                            if (message.processOptions != null && message.hasOwnProperty("processOptions"))
+                                object.processOptions = $root.google.cloud.documentai.v1beta3.ProcessOptions.toObject(message.processOptions, options);
                             return object;
                         };
     
@@ -84261,6 +84768,7 @@
                          * @property {Array.<google.cloud.documentai.v1beta3.ProcessorType.ILocationInfo>|null} [availableLocations] ProcessorType availableLocations
                          * @property {boolean|null} [allowCreation] ProcessorType allowCreation
                          * @property {google.api.LaunchStage|null} [launchStage] ProcessorType launchStage
+                         * @property {Array.<string>|null} [sampleDocumentUris] ProcessorType sampleDocumentUris
                          */
     
                         /**
@@ -84273,6 +84781,7 @@
                          */
                         function ProcessorType(properties) {
                             this.availableLocations = [];
+                            this.sampleDocumentUris = [];
                             if (properties)
                                 for (var keys = Object.keys(properties), i = 0; i < keys.length; ++i)
                                     if (properties[keys[i]] != null)
@@ -84327,6 +84836,14 @@
                          */
                         ProcessorType.prototype.launchStage = 0;
     
+                        /**
+                         * ProcessorType sampleDocumentUris.
+                         * @member {Array.<string>} sampleDocumentUris
+                         * @memberof google.cloud.documentai.v1beta3.ProcessorType
+                         * @instance
+                         */
+                        ProcessorType.prototype.sampleDocumentUris = $util.emptyArray;
+    
                         /**
                          * Creates a new ProcessorType instance using the specified properties.
                          * @function create
@@ -84364,6 +84881,9 @@
                                 writer.uint32(/* id 6, wireType 0 =*/48).bool(message.allowCreation);
                             if (message.launchStage != null && Object.hasOwnProperty.call(message, "launchStage"))
                                 writer.uint32(/* id 8, wireType 0 =*/64).int32(message.launchStage);
+                            if (message.sampleDocumentUris != null && message.sampleDocumentUris.length)
+                                for (var i = 0; i < message.sampleDocumentUris.length; ++i)
+                                    writer.uint32(/* id 9, wireType 2 =*/74).string(message.sampleDocumentUris[i]);
                             return writer;
                         };
     
@@ -84424,6 +84944,12 @@
                                         message.launchStage = reader.int32();
                                         break;
                                     }
+                                case 9: {
+                                        if (!(message.sampleDocumentUris && message.sampleDocumentUris.length))
+                                            message.sampleDocumentUris = [];
+                                        message.sampleDocumentUris.push(reader.string());
+                                        break;
+                                    }
                                 default:
                                     reader.skipType(tag & 7);
                                     break;
@@ -84494,6 +85020,13 @@
                                 case 5:
                                     break;
                                 }
+                            if (message.sampleDocumentUris != null && message.hasOwnProperty("sampleDocumentUris")) {
+                                if (!Array.isArray(message.sampleDocumentUris))
+                                    return "sampleDocumentUris: array expected";
+                                for (var i = 0; i < message.sampleDocumentUris.length; ++i)
+                                    if (!$util.isString(message.sampleDocumentUris[i]))
+                                        return "sampleDocumentUris: string[] expected";
+                            }
                             return null;
                         };
     
@@ -84567,6 +85100,13 @@
                                 message.launchStage = 5;
                                 break;
                             }
+                            if (object.sampleDocumentUris) {
+                                if (!Array.isArray(object.sampleDocumentUris))
+                                    throw TypeError(".google.cloud.documentai.v1beta3.ProcessorType.sampleDocumentUris: array expected");
+                                message.sampleDocumentUris = [];
+                                for (var i = 0; i < object.sampleDocumentUris.length; ++i)
+                                    message.sampleDocumentUris[i] = String(object.sampleDocumentUris[i]);
+                            }
                             return message;
                         };
     
@@ -84583,8 +85123,10 @@
                             if (!options)
                                 options = {};
                             var object = {};
-                            if (options.arrays || options.defaults)
+                            if (options.arrays || options.defaults) {
                                 object.availableLocations = [];
+                                object.sampleDocumentUris = [];
+                            }
                             if (options.defaults) {
                                 object.name = "";
                                 object.type = "";
@@ -84607,6 +85149,11 @@
                                 object.allowCreation = message.allowCreation;
                             if (message.launchStage != null && message.hasOwnProperty("launchStage"))
                                 object.launchStage = options.enums === String ? $root.google.api.LaunchStage[message.launchStage] === undefined ? message.launchStage : $root.google.api.LaunchStage[message.launchStage] : message.launchStage;
+                            if (message.sampleDocumentUris && message.sampleDocumentUris.length) {
+                                object.sampleDocumentUris = [];
+                                for (var j = 0; j < message.sampleDocumentUris.length; ++j)
+                                    object.sampleDocumentUris[j] = message.sampleDocumentUris[j];
+                            }
                             return object;
                         };
     
diff --git a/packages/google-cloud-documentai/protos/protos.json b/packages/google-cloud-documentai/protos/protos.json
index a0d6d65074f..6bce72d4cf1 100644
--- a/packages/google-cloud-documentai/protos/protos.json
+++ b/packages/google-cloud-documentai/protos/protos.json
@@ -73,7 +73,10 @@
                         "textStyles": {
                           "rule": "repeated",
                           "type": "Style",
-                          "id": 5
+                          "id": 5,
+                          "options": {
+                            "deprecated": true
+                          }
                         },
                         "pages": {
                           "rule": "repeated",
@@ -2449,6 +2452,11 @@
                         "launchStage": {
                           "type": "google.api.LaunchStage",
                           "id": 8
+                        },
+                        "sampleDocumentUris": {
+                          "rule": "repeated",
+                          "type": "string",
+                          "id": 9
                         }
                       },
                       "nested": {
@@ -4350,7 +4358,10 @@
                         "textStyles": {
                           "rule": "repeated",
                           "type": "Style",
-                          "id": 5
+                          "id": 5,
+                          "options": {
+                            "deprecated": true
+                          }
                         },
                         "pages": {
                           "rule": "repeated",
@@ -5437,6 +5448,14 @@
                         }
                       }
                     },
+                    "OcrConfig": {
+                      "fields": {
+                        "enableNativePdfParsing": {
+                          "type": "bool",
+                          "id": 3
+                        }
+                      }
+                    },
                     "DocumentProcessorService": {
                       "options": {
                         "(google.api.default_host)": "documentai.googleapis.com",
@@ -5933,6 +5952,14 @@
                         }
                       }
                     },
+                    "ProcessOptions": {
+                      "fields": {
+                        "ocrConfig": {
+                          "type": "OcrConfig",
+                          "id": 1
+                        }
+                      }
+                    },
                     "ProcessRequest": {
                       "oneofs": {
                         "source": {
@@ -5973,6 +6000,10 @@
                         "fieldMask": {
                           "type": "google.protobuf.FieldMask",
                           "id": 6
+                        },
+                        "processOptions": {
+                          "type": "ProcessOptions",
+                          "id": 7
                         }
                       }
                     },
@@ -6058,6 +6089,10 @@
                         "skipHumanReview": {
                           "type": "bool",
                           "id": 4
+                        },
+                        "processOptions": {
+                          "type": "ProcessOptions",
+                          "id": 7
                         }
                       },
                       "nested": {
@@ -7260,6 +7295,11 @@
                         "launchStage": {
                           "type": "google.api.LaunchStage",
                           "id": 8
+                        },
+                        "sampleDocumentUris": {
+                          "rule": "repeated",
+                          "type": "string",
+                          "id": 9
                         }
                       },
                       "nested": {
diff --git a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.batch_process_documents.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.batch_process_documents.js
index c099efd7b6c..73f9d4603cb 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.batch_process_documents.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.batch_process_documents.js
@@ -29,7 +29,8 @@ function main(name) {
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
-   *  Required. The resource name of Processor google.cloud.documentai.v1.Processor  or
+   *  Required. The resource name of
+   *  Processor google.cloud.documentai.v1.Processor  or
    *  ProcessorVersion google.cloud.documentai.v1.ProcessorVersion.
    *  Format: `projects/{project}/locations/{location}/processors/{processor}`,
    *  or
diff --git a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.create_processor.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.create_processor.js
index 24da55f864f..3f2b7311893 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.create_processor.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.create_processor.js
@@ -29,13 +29,14 @@ function main(parent, processor) {
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
-   *  Required. The parent (project and location) under which to create the processor.
-   *  Format: `projects/{project}/locations/{location}`
+   *  Required. The parent (project and location) under which to create the
+   *  processor. Format: `projects/{project}/locations/{location}`
    */
   // const parent = 'abc123'
   /**
-   *  Required. The processor to be created, requires processor_type  and display_name 
-   *  to be set. Also, the processor is under CMEK if CMEK fields are set.
+   *  Required. The processor to be created, requires processor_type  and
+   *  display_name  to be set. Also, the processor is under CMEK if CMEK fields
+   *  are set.
    */
   // const processor = {}
 
diff --git a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processor_versions.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processor_versions.js
index 490c0fb5038..8f62027c10c 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processor_versions.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processor_versions.js
@@ -29,8 +29,9 @@ function main(parent) {
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
-   *  Required. The parent (project, location and processor) to list all versions.
-   *  Format: `projects/{project}/locations/{location}/processors/{processor}`
+   *  Required. The parent (project, location and processor) to list all
+   *  versions. Format:
+   *  `projects/{project}/locations/{location}/processors/{processor}`
    */
   // const parent = 'abc123'
   /**
diff --git a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processors.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processors.js
index 62b63c5ce60..5001e10f397 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processors.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.list_processors.js
@@ -29,8 +29,8 @@ function main(parent) {
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
-   *  Required. The parent (project and location) which owns this collection of Processors.
-   *  Format: `projects/{project}/locations/{location}`
+   *  Required. The parent (project and location) which owns this collection of
+   *  Processors. Format: `projects/{project}/locations/{location}`
    */
   // const parent = 'abc123'
   /**
diff --git a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.process_document.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.process_document.js
index dfcb92d5a7d..0e264c66c4a 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.process_document.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.process_document.js
@@ -37,11 +37,15 @@ function main(name) {
    */
   // const rawDocument = {}
   /**
-   *  Required. The resource name of the Processor google.cloud.documentai.v1.Processor  or
+   *  Required. The resource name of the
+   *  Processor google.cloud.documentai.v1.Processor  or
    *  ProcessorVersion google.cloud.documentai.v1.ProcessorVersion 
-   *  to use for processing. If a Processor google.cloud.documentai.v1.Processor  is specified, the server will use
-   *  its default version google.cloud.documentai.v1.Processor.default_processor_version. Format:
-   *  `projects/{project}/locations/{location}/processors/{processor}`, or
+   *  to use for processing. If a
+   *  Processor google.cloud.documentai.v1.Processor  is specified, the server
+   *  will use its default
+   *  version google.cloud.documentai.v1.Processor.default_processor_version.
+   *  Format: `projects/{project}/locations/{location}/processors/{processor}`,
+   *  or
    *  `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
    */
   // const name = 'abc123'
diff --git a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.review_document.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.review_document.js
index 583b5a9b150..2c0ac74de17 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.review_document.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.review_document.js
@@ -33,8 +33,8 @@ function main(humanReviewConfig) {
    */
   // const inlineDocument = {}
   /**
-   *  Required. The resource name of the HumanReviewConfig that the document will be
-   *  reviewed with.
+   *  Required. The resource name of the HumanReviewConfig that the document will
+   *  be reviewed with.
    */
   // const humanReviewConfig = 'abc123'
   /**
diff --git a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.set_default_processor_version.js b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.set_default_processor_version.js
index 64556b986f5..877d9839850 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.set_default_processor_version.js
+++ b/packages/google-cloud-documentai/samples/generated/v1/document_processor_service.set_default_processor_version.js
@@ -29,12 +29,15 @@ function main(processor, defaultProcessorVersion) {
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
-   *  Required. The resource name of the Processor google.cloud.documentai.v1.Processor  to change default version.
+   *  Required. The resource name of the
+   *  Processor google.cloud.documentai.v1.Processor  to change default
+   *  version.
    */
   // const processor = 'abc123'
   /**
-   *  Required. The resource name of child ProcessorVersion google.cloud.documentai.v1.ProcessorVersion  to use as default.
-   *  Format:
+   *  Required. The resource name of child
+   *  ProcessorVersion google.cloud.documentai.v1.ProcessorVersion  to use as
+   *  default. Format:
    *  `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{version}`
    */
   // const defaultProcessorVersion = 'abc123'
diff --git a/packages/google-cloud-documentai/samples/generated/v1/snippet_metadata.google.cloud.documentai.v1.json b/packages/google-cloud-documentai/samples/generated/v1/snippet_metadata.google.cloud.documentai.v1.json
index eae3a1d5f10..04680d69274 100644
--- a/packages/google-cloud-documentai/samples/generated/v1/snippet_metadata.google.cloud.documentai.v1.json
+++ b/packages/google-cloud-documentai/samples/generated/v1/snippet_metadata.google.cloud.documentai.v1.json
@@ -22,7 +22,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 77,
+                    "end": 81,
                     "type": "FULL"
                 }
             ],
@@ -78,7 +78,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 71,
+                    "end": 72,
                     "type": "FULL"
                 }
             ],
@@ -346,7 +346,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 67,
+                    "end": 68,
                     "type": "FULL"
                 }
             ],
@@ -514,7 +514,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 60,
+                    "end": 61,
                     "type": "FULL"
                 }
             ],
@@ -678,7 +678,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 61,
+                    "end": 64,
                     "type": "FULL"
                 }
             ],
diff --git a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.batch_process_documents.js b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.batch_process_documents.js
index 25bd5f659c2..a31dc7f3099 100644
--- a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.batch_process_documents.js
+++ b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.batch_process_documents.js
@@ -29,7 +29,8 @@ function main(name) {
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
-   *  Required. The resource name of Processor google.cloud.documentai.v1beta3.Processor  or
+   *  Required. The resource name of
+   *  Processor google.cloud.documentai.v1beta3.Processor  or
    *  ProcessorVersion google.cloud.documentai.v1beta3.ProcessorVersion.
    *  Format: `projects/{project}/locations/{location}/processors/{processor}`,
    *  or
@@ -57,6 +58,10 @@ function main(name) {
    *  false.
    */
   // const skipHumanReview = true
+  /**
+   *  Inference-time options for the process API
+   */
+  // const processOptions = {}
 
   // Imports the Documentai library
   const {DocumentProcessorServiceClient} = require('@google-cloud/documentai').v1beta3;
diff --git a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.create_processor.js b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.create_processor.js
index fc1916f0a92..1ca895cb351 100644
--- a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.create_processor.js
+++ b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.create_processor.js
@@ -29,13 +29,14 @@ function main(parent, processor) {
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
-   *  Required. The parent (project and location) under which to create the processor.
-   *  Format: `projects/{project}/locations/{location}`
+   *  Required. The parent (project and location) under which to create the
+   *  processor. Format: `projects/{project}/locations/{location}`
    */
   // const parent = 'abc123'
   /**
-   *  Required. The processor to be created, requires processor_type  and display_name 
-   *  to be set. Also, the processor is under CMEK if CMEK fields are set.
+   *  Required. The processor to be created, requires processor_type  and
+   *  display_name  to be set. Also, the processor is under CMEK if CMEK fields
+   *  are set.
    */
   // const processor = {}
 
diff --git a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.evaluate_processor_version.js b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.evaluate_processor_version.js
index e6af3689920..a4743fdef93 100644
--- a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.evaluate_processor_version.js
+++ b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.evaluate_processor_version.js
@@ -29,13 +29,15 @@ function main(processorVersion) {
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
-   *  Required. The resource name of the ProcessorVersion google.cloud.documentai.v1beta3.ProcessorVersion  to evaluate.
+   *  Required. The resource name of the
+   *  ProcessorVersion google.cloud.documentai.v1beta3.ProcessorVersion  to
+   *  evaluate.
    *  `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
    */
   // const processorVersion = 'abc123'
   /**
-   *  Optional. The documents used in the evaluation. If unspecified, use the processor's
-   *  dataset as evaluation input.
+   *  Optional. The documents used in the evaluation. If unspecified, use the
+   *  processor's dataset as evaluation input.
    */
   // const evaluationDocuments = {}
 
diff --git a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.get_evaluation.js b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.get_evaluation.js
index 7414abc0a9d..639c41fafe0 100644
--- a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.get_evaluation.js
+++ b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.get_evaluation.js
@@ -29,7 +29,8 @@ function main(name) {
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
-   *  Required. The resource name of the Evaluation google.cloud.documentai.v1beta3.Evaluation  to get.
+   *  Required. The resource name of the
+   *  Evaluation google.cloud.documentai.v1beta3.Evaluation  to get.
    *  `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}/evaluations/{evaluation}`
    */
   // const name = 'abc123'
diff --git a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.list_evaluations.js b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.list_evaluations.js
index 05b206dc802..18c51225399 100644
--- a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.list_evaluations.js
+++ b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.list_evaluations.js
@@ -29,7 +29,9 @@ function main(parent) {
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
-   *  Required. The resource name of the ProcessorVersion google.cloud.documentai.v1beta3.ProcessorVersion  to list evaluations for.
+   *  Required. The resource name of the
+   *  ProcessorVersion google.cloud.documentai.v1beta3.ProcessorVersion  to
+   *  list evaluations for.
    *  `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
    */
   // const parent = 'abc123'
diff --git a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.list_processor_versions.js b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.list_processor_versions.js
index c922f46fadc..141987450d9 100644
--- a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.list_processor_versions.js
+++ b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.list_processor_versions.js
@@ -29,8 +29,9 @@ function main(parent) {
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
-   *  Required. The parent (project, location and processor) to list all versions.
-   *  Format: `projects/{project}/locations/{location}/processors/{processor}`
+   *  Required. The parent (project, location and processor) to list all
+   *  versions. Format:
+   *  `projects/{project}/locations/{location}/processors/{processor}`
    */
   // const parent = 'abc123'
   /**
diff --git a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.list_processors.js b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.list_processors.js
index c136a802329..76740b6e497 100644
--- a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.list_processors.js
+++ b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.list_processors.js
@@ -29,8 +29,8 @@ function main(parent) {
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
-   *  Required. The parent (project and location) which owns this collection of Processors.
-   *  Format: `projects/{project}/locations/{location}`
+   *  Required. The parent (project and location) which owns this collection of
+   *  Processors. Format: `projects/{project}/locations/{location}`
    */
   // const parent = 'abc123'
   /**
diff --git a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.process_document.js b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.process_document.js
index b64abecbc4c..1a974e8e3ee 100644
--- a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.process_document.js
+++ b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.process_document.js
@@ -37,11 +37,15 @@ function main(name) {
    */
   // const rawDocument = {}
   /**
-   *  Required. The resource name of the Processor google.cloud.documentai.v1beta3.Processor  or
+   *  Required. The resource name of the
+   *  Processor google.cloud.documentai.v1beta3.Processor  or
    *  ProcessorVersion google.cloud.documentai.v1beta3.ProcessorVersion 
-   *  to use for processing. If a Processor google.cloud.documentai.v1beta3.Processor  is specified, the server will use
-   *  its default version google.cloud.documentai.v1beta3.Processor.default_processor_version. Format:
-   *  `projects/{project}/locations/{location}/processors/{processor}`, or
+   *  to use for processing. If a
+   *  Processor google.cloud.documentai.v1beta3.Processor  is specified, the
+   *  server will use its default
+   *  version google.cloud.documentai.v1beta3.Processor.default_processor_version.
+   *  Format: `projects/{project}/locations/{location}/processors/{processor}`,
+   *  or
    *  `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
    */
   // const name = 'abc123'
@@ -60,6 +64,10 @@ function main(name) {
    *  of `{document_field_name}` or `pages.{page_field_name}`.
    */
   // const fieldMask = {}
+  /**
+   *  Inference-time options for the process API
+   */
+  // const processOptions = {}
 
   // Imports the Documentai library
   const {DocumentProcessorServiceClient} = require('@google-cloud/documentai').v1beta3;
diff --git a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.review_document.js b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.review_document.js
index cb7b942ae57..3099720245d 100644
--- a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.review_document.js
+++ b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.review_document.js
@@ -33,8 +33,8 @@ function main(humanReviewConfig) {
    */
   // const inlineDocument = {}
   /**
-   *  Required. The resource name of the HumanReviewConfig that the document will be
-   *  reviewed with.
+   *  Required. The resource name of the HumanReviewConfig that the document will
+   *  be reviewed with.
    */
   // const humanReviewConfig = 'abc123'
   /**
diff --git a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.set_default_processor_version.js b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.set_default_processor_version.js
index 44d9177db6b..7ed01a858e3 100644
--- a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.set_default_processor_version.js
+++ b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.set_default_processor_version.js
@@ -29,12 +29,15 @@ function main(processor, defaultProcessorVersion) {
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
-   *  Required. The resource name of the Processor google.cloud.documentai.v1beta3.Processor  to change default version.
+   *  Required. The resource name of the
+   *  Processor google.cloud.documentai.v1beta3.Processor  to change default
+   *  version.
    */
   // const processor = 'abc123'
   /**
-   *  Required. The resource name of child ProcessorVersion google.cloud.documentai.v1beta3.ProcessorVersion  to use as default.
-   *  Format:
+   *  Required. The resource name of child
+   *  ProcessorVersion google.cloud.documentai.v1beta3.ProcessorVersion  to use
+   *  as default. Format:
    *  `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{version}`
    */
   // const defaultProcessorVersion = 'abc123'
diff --git a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.train_processor_version.js b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.train_processor_version.js
index 24015f9da1a..dffbc96d9f0 100644
--- a/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.train_processor_version.js
+++ b/packages/google-cloud-documentai/samples/generated/v1beta3/document_processor_service.train_processor_version.js
@@ -29,8 +29,9 @@ function main(parent, processorVersion) {
    * TODO(developer): Uncomment these variables before running the sample.
    */
   /**
-   *  Required. The parent (project, location and processor) to create the new version for.
-   *  Format: `projects/{project}/locations/{location}/processors/{processor}`.
+   *  Required. The parent (project, location and processor) to create the new
+   *  version for. Format:
+   *  `projects/{project}/locations/{location}/processors/{processor}`.
    */
   // const parent = 'abc123'
   /**
@@ -46,8 +47,8 @@ function main(parent, processorVersion) {
    */
   // const inputData = {}
   /**
-   *  Optional. The processor version to use as a base for training. This processor version
-   *  must be a child of `parent`. Format:
+   *  Optional. The processor version to use as a base for training. This
+   *  processor version must be a child of `parent`. Format:
    *  `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`.
    */
   // const baseProcessorVersion = 'abc123'
diff --git a/packages/google-cloud-documentai/samples/generated/v1beta3/snippet_metadata.google.cloud.documentai.v1beta3.json b/packages/google-cloud-documentai/samples/generated/v1beta3/snippet_metadata.google.cloud.documentai.v1beta3.json
index ab0ad8ef8f7..78158081eb2 100644
--- a/packages/google-cloud-documentai/samples/generated/v1beta3/snippet_metadata.google.cloud.documentai.v1beta3.json
+++ b/packages/google-cloud-documentai/samples/generated/v1beta3/snippet_metadata.google.cloud.documentai.v1beta3.json
@@ -22,7 +22,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 81,
+                    "end": 89,
                     "type": "FULL"
                 }
             ],
@@ -54,6 +54,10 @@
                     {
                         "name": "field_mask",
                         "type": ".google.protobuf.FieldMask"
+                    },
+                    {
+                        "name": "process_options",
+                        "type": ".google.cloud.documentai.v1beta3.ProcessOptions"
                     }
                 ],
                 "resultType": ".google.cloud.documentai.v1beta3.ProcessResponse",
@@ -82,7 +86,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 79,
+                    "end": 84,
                     "type": "FULL"
                 }
             ],
@@ -114,6 +118,10 @@
                     {
                         "name": "skip_human_review",
                         "type": "TYPE_BOOL"
+                    },
+                    {
+                        "name": "process_options",
+                        "type": ".google.cloud.documentai.v1beta3.ProcessOptions"
                     }
                 ],
                 "resultType": ".google.longrunning.Operation",
@@ -318,7 +326,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 74,
+                    "end": 75,
                     "type": "FULL"
                 }
             ],
@@ -414,7 +422,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 67,
+                    "end": 68,
                     "type": "FULL"
                 }
             ],
@@ -582,7 +590,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 60,
+                    "end": 61,
                     "type": "FULL"
                 }
             ],
@@ -746,7 +754,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 61,
+                    "end": 64,
                     "type": "FULL"
                 }
             ],
@@ -850,7 +858,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 60,
+                    "end": 62,
                     "type": "FULL"
                 }
             ],
@@ -894,7 +902,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 54,
+                    "end": 55,
                     "type": "FULL"
                 }
             ],
@@ -934,7 +942,7 @@
             "segments": [
                 {
                     "start": 25,
-                    "end": 67,
+                    "end": 69,
                     "type": "FULL"
                 }
             ],
diff --git a/packages/google-cloud-documentai/src/v1/document_processor_service_client.ts b/packages/google-cloud-documentai/src/v1/document_processor_service_client.ts
index a1045c0d373..06501ca4445 100644
--- a/packages/google-cloud-documentai/src/v1/document_processor_service_client.ts
+++ b/packages/google-cloud-documentai/src/v1/document_processor_service_client.ts
@@ -572,11 +572,15 @@ export class DocumentProcessorServiceClient {
    * @param {google.cloud.documentai.v1.RawDocument} request.rawDocument
    *   A raw document content (bytes).
    * @param {string} request.name
-   *   Required. The resource name of the {@link google.cloud.documentai.v1.Processor|Processor} or
+   *   Required. The resource name of the
+   *   {@link google.cloud.documentai.v1.Processor|Processor} or
    *   {@link google.cloud.documentai.v1.ProcessorVersion|ProcessorVersion}
-   *   to use for processing. If a {@link google.cloud.documentai.v1.Processor|Processor} is specified, the server will use
-   *   its {@link google.cloud.documentai.v1.Processor.default_processor_version|default version}. Format:
-   *   `projects/{project}/locations/{location}/processors/{processor}`, or
+   *   to use for processing. If a
+   *   {@link google.cloud.documentai.v1.Processor|Processor} is specified, the server
+   *   will use its [default
+   *   version][google.cloud.documentai.v1.Processor.default_processor_version].
+   *   Format: `projects/{project}/locations/{location}/processors/{processor}`,
+   *   or
    *   `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
    * @param {boolean} request.skipHumanReview
    *   Whether Human Review feature should be skipped for this request. Default to
@@ -938,11 +942,12 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project and location) under which to create the processor.
-   *   Format: `projects/{project}/locations/{location}`
+   *   Required. The parent (project and location) under which to create the
+   *   processor. Format: `projects/{project}/locations/{location}`
    * @param {google.cloud.documentai.v1.Processor} request.processor
-   *   Required. The processor to be created, requires [processor_type] and [display_name]
-   *   to be set. Also, the processor is under CMEK if CMEK fields are set.
+   *   Required. The processor to be created, requires [processor_type] and
+   *   [display_name] to be set. Also, the processor is under CMEK if CMEK fields
+   *   are set.
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Promise} - The promise which resolves to an array.
@@ -1035,7 +1040,8 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.name
-   *   Required. The resource name of {@link google.cloud.documentai.v1.Processor|Processor} or
+   *   Required. The resource name of
+   *   {@link google.cloud.documentai.v1.Processor|Processor} or
    *   {@link google.cloud.documentai.v1.ProcessorVersion|ProcessorVersion}.
    *   Format: `projects/{project}/locations/{location}/processors/{processor}`,
    *   or
@@ -2021,17 +2027,22 @@ export class DocumentProcessorServiceClient {
     >;
   }
   /**
-   * Set the default (active) version of a {@link google.cloud.documentai.v1.Processor|Processor} that will be used in
-   * {@link google.cloud.documentai.v1.DocumentProcessorService.ProcessDocument|ProcessDocument} and
+   * Set the default (active) version of a
+   * {@link google.cloud.documentai.v1.Processor|Processor} that will be used in
+   * {@link google.cloud.documentai.v1.DocumentProcessorService.ProcessDocument|ProcessDocument}
+   * and
    * {@link google.cloud.documentai.v1.DocumentProcessorService.BatchProcessDocuments|BatchProcessDocuments}.
    *
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.processor
-   *   Required. The resource name of the {@link google.cloud.documentai.v1.Processor|Processor} to change default version.
+   *   Required. The resource name of the
+   *   {@link google.cloud.documentai.v1.Processor|Processor} to change default
+   *   version.
    * @param {string} request.defaultProcessorVersion
-   *   Required. The resource name of child {@link google.cloud.documentai.v1.ProcessorVersion|ProcessorVersion} to use as default.
-   *   Format:
+   *   Required. The resource name of child
+   *   {@link google.cloud.documentai.v1.ProcessorVersion|ProcessorVersion} to use as
+   *   default. Format:
    *   `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{version}`
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
@@ -2177,8 +2188,8 @@ export class DocumentProcessorServiceClient {
    * @param {google.cloud.documentai.v1.Document} request.inlineDocument
    *   An inline document proto.
    * @param {string} request.humanReviewConfig
-   *   Required. The resource name of the HumanReviewConfig that the document will be
-   *   reviewed with.
+   *   Required. The resource name of the HumanReviewConfig that the document will
+   *   be reviewed with.
    * @param {boolean} request.enableSchemaValidation
    *   Whether the validation should be performed on the ad-hoc review request.
    * @param {google.cloud.documentai.v1.ReviewDocumentRequest.Priority} request.priority
@@ -2523,8 +2534,8 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project and location) which owns this collection of Processors.
-   *   Format: `projects/{project}/locations/{location}`
+   *   Required. The parent (project and location) which owns this collection of
+   *   Processors. Format: `projects/{project}/locations/{location}`
    * @param {number} request.pageSize
    *   The maximum number of processors to return.
    *   If unspecified, at most 50 processors will be returned.
@@ -2625,8 +2636,8 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project and location) which owns this collection of Processors.
-   *   Format: `projects/{project}/locations/{location}`
+   *   Required. The parent (project and location) which owns this collection of
+   *   Processors. Format: `projects/{project}/locations/{location}`
    * @param {number} request.pageSize
    *   The maximum number of processors to return.
    *   If unspecified, at most 50 processors will be returned.
@@ -2675,8 +2686,8 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project and location) which owns this collection of Processors.
-   *   Format: `projects/{project}/locations/{location}`
+   *   Required. The parent (project and location) which owns this collection of
+   *   Processors. Format: `projects/{project}/locations/{location}`
    * @param {number} request.pageSize
    *   The maximum number of processors to return.
    *   If unspecified, at most 50 processors will be returned.
@@ -2724,8 +2735,9 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project, location and processor) to list all versions.
-   *   Format: `projects/{project}/locations/{location}/processors/{processor}`
+   *   Required. The parent (project, location and processor) to list all
+   *   versions. Format:
+   *   `projects/{project}/locations/{location}/processors/{processor}`
    * @param {number} request.pageSize
    *   The maximum number of processor versions to return.
    *   If unspecified, at most 10 processor versions will be returned.
@@ -2826,8 +2838,9 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project, location and processor) to list all versions.
-   *   Format: `projects/{project}/locations/{location}/processors/{processor}`
+   *   Required. The parent (project, location and processor) to list all
+   *   versions. Format:
+   *   `projects/{project}/locations/{location}/processors/{processor}`
    * @param {number} request.pageSize
    *   The maximum number of processor versions to return.
    *   If unspecified, at most 10 processor versions will be returned.
@@ -2876,8 +2889,9 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project, location and processor) to list all versions.
-   *   Format: `projects/{project}/locations/{location}/processors/{processor}`
+   *   Required. The parent (project, location and processor) to list all
+   *   versions. Format:
+   *   `projects/{project}/locations/{location}/processors/{processor}`
    * @param {number} request.pageSize
    *   The maximum number of processor versions to return.
    *   If unspecified, at most 10 processor versions will be returned.
diff --git a/packages/google-cloud-documentai/src/v1beta3/document_processor_service_client.ts b/packages/google-cloud-documentai/src/v1beta3/document_processor_service_client.ts
index 8f17822972f..2ea5587ae7a 100644
--- a/packages/google-cloud-documentai/src/v1beta3/document_processor_service_client.ts
+++ b/packages/google-cloud-documentai/src/v1beta3/document_processor_service_client.ts
@@ -611,11 +611,15 @@ export class DocumentProcessorServiceClient {
    * @param {google.cloud.documentai.v1beta3.RawDocument} request.rawDocument
    *   A raw document content (bytes).
    * @param {string} request.name
-   *   Required. The resource name of the {@link google.cloud.documentai.v1beta3.Processor|Processor} or
+   *   Required. The resource name of the
+   *   {@link google.cloud.documentai.v1beta3.Processor|Processor} or
    *   {@link google.cloud.documentai.v1beta3.ProcessorVersion|ProcessorVersion}
-   *   to use for processing. If a {@link google.cloud.documentai.v1beta3.Processor|Processor} is specified, the server will use
-   *   its {@link google.cloud.documentai.v1beta3.Processor.default_processor_version|default version}. Format:
-   *   `projects/{project}/locations/{location}/processors/{processor}`, or
+   *   to use for processing. If a
+   *   {@link google.cloud.documentai.v1beta3.Processor|Processor} is specified, the
+   *   server will use its [default
+   *   version][google.cloud.documentai.v1beta3.Processor.default_processor_version].
+   *   Format: `projects/{project}/locations/{location}/processors/{processor}`,
+   *   or
    *   `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
    * @param {google.cloud.documentai.v1beta3.Document} request.document
    *   The document payload, the [content] and [mime_type] fields must be set.
@@ -626,6 +630,8 @@ export class DocumentProcessorServiceClient {
    *   Specifies which fields to include in ProcessResponse's document.
    *   Only supports top level document and pages field so it must be in the form
    *   of `{document_field_name}` or `pages.{page_field_name}`.
+   * @param {google.cloud.documentai.v1beta3.ProcessOptions} request.processOptions
+   *   Inference-time options for the process API
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Promise} - The promise which resolves to an array.
@@ -999,11 +1005,12 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project and location) under which to create the processor.
-   *   Format: `projects/{project}/locations/{location}`
+   *   Required. The parent (project and location) under which to create the
+   *   processor. Format: `projects/{project}/locations/{location}`
    * @param {google.cloud.documentai.v1beta3.Processor} request.processor
-   *   Required. The processor to be created, requires [processor_type] and [display_name]
-   *   to be set. Also, the processor is under CMEK if CMEK fields are set.
+   *   Required. The processor to be created, requires [processor_type] and
+   *   [display_name] to be set. Also, the processor is under CMEK if CMEK fields
+   *   are set.
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Promise} - The promise which resolves to an array.
@@ -1100,7 +1107,8 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.name
-   *   Required. The resource name of the {@link google.cloud.documentai.v1beta3.Evaluation|Evaluation} to get.
+   *   Required. The resource name of the
+   *   {@link google.cloud.documentai.v1beta3.Evaluation|Evaluation} to get.
    *   `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}/evaluations/{evaluation}`
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
@@ -1194,7 +1202,8 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.name
-   *   Required. The resource name of {@link google.cloud.documentai.v1beta3.Processor|Processor} or
+   *   Required. The resource name of
+   *   {@link google.cloud.documentai.v1beta3.Processor|Processor} or
    *   {@link google.cloud.documentai.v1beta3.ProcessorVersion|ProcessorVersion}.
    *   Format: `projects/{project}/locations/{location}/processors/{processor}`,
    *   or
@@ -1210,6 +1219,8 @@ export class DocumentProcessorServiceClient {
    * @param {boolean} request.skipHumanReview
    *   Whether Human Review feature should be skipped for this request. Default to
    *   false.
+   * @param {google.cloud.documentai.v1beta3.ProcessOptions} request.processOptions
+   *   Inference-time options for the process API
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Promise} - The promise which resolves to an array.
@@ -1349,8 +1360,9 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project, location and processor) to create the new version for.
-   *   Format: `projects/{project}/locations/{location}/processors/{processor}`.
+   *   Required. The parent (project, location and processor) to create the new
+   *   version for. Format:
+   *   `projects/{project}/locations/{location}/processors/{processor}`.
    * @param {google.cloud.documentai.v1beta3.ProcessorVersion} request.processorVersion
    *   Required. The processor version to be created.
    * @param {google.cloud.documentai.v1beta3.DocumentSchema} [request.documentSchema]
@@ -1358,8 +1370,8 @@ export class DocumentProcessorServiceClient {
    * @param {google.cloud.documentai.v1beta3.TrainProcessorVersionRequest.InputData} [request.inputData]
    *   Optional. The input data used to train the `ProcessorVersion`.
    * @param {string} [request.baseProcessorVersion]
-   *   Optional. The processor version to use as a base for training. This processor version
-   *   must be a child of `parent`. Format:
+   *   Optional. The processor version to use as a base for training. This
+   *   processor version must be a child of `parent`. Format:
    *   `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`.
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
@@ -2335,17 +2347,22 @@ export class DocumentProcessorServiceClient {
     >;
   }
   /**
-   * Set the default (active) version of a {@link google.cloud.documentai.v1beta3.Processor|Processor} that will be used in
-   * {@link google.cloud.documentai.v1beta3.DocumentProcessorService.ProcessDocument|ProcessDocument} and
+   * Set the default (active) version of a
+   * {@link google.cloud.documentai.v1beta3.Processor|Processor} that will be used in
+   * {@link google.cloud.documentai.v1beta3.DocumentProcessorService.ProcessDocument|ProcessDocument}
+   * and
    * {@link google.cloud.documentai.v1beta3.DocumentProcessorService.BatchProcessDocuments|BatchProcessDocuments}.
    *
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.processor
-   *   Required. The resource name of the {@link google.cloud.documentai.v1beta3.Processor|Processor} to change default version.
+   *   Required. The resource name of the
+   *   {@link google.cloud.documentai.v1beta3.Processor|Processor} to change default
+   *   version.
    * @param {string} request.defaultProcessorVersion
-   *   Required. The resource name of child {@link google.cloud.documentai.v1beta3.ProcessorVersion|ProcessorVersion} to use as default.
-   *   Format:
+   *   Required. The resource name of child
+   *   {@link google.cloud.documentai.v1beta3.ProcessorVersion|ProcessorVersion} to use
+   *   as default. Format:
    *   `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{version}`
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
@@ -2491,8 +2508,8 @@ export class DocumentProcessorServiceClient {
    * @param {google.cloud.documentai.v1beta3.Document} request.inlineDocument
    *   An inline document proto.
    * @param {string} request.humanReviewConfig
-   *   Required. The resource name of the HumanReviewConfig that the document will be
-   *   reviewed with.
+   *   Required. The resource name of the HumanReviewConfig that the document will
+   *   be reviewed with.
    * @param {google.cloud.documentai.v1beta3.Document} request.document
    *   The document that needs human review.
    * @param {boolean} request.enableSchemaValidation
@@ -2639,11 +2656,13 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.processorVersion
-   *   Required. The resource name of the {@link google.cloud.documentai.v1beta3.ProcessorVersion|ProcessorVersion} to evaluate.
+   *   Required. The resource name of the
+   *   {@link google.cloud.documentai.v1beta3.ProcessorVersion|ProcessorVersion} to
+   *   evaluate.
    *   `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
    * @param {google.cloud.documentai.v1beta3.BatchDocumentsInputConfig} [request.evaluationDocuments]
-   *   Optional. The documents used in the evaluation. If unspecified, use the processor's
-   *   dataset as evaluation input.
+   *   Optional. The documents used in the evaluation. If unspecified, use the
+   *   processor's dataset as evaluation input.
    * @param {object} [options]
    *   Call options. See {@link https://googleapis.dev/nodejs/google-gax/latest/interfaces/CallOptions.html|CallOptions} for more details.
    * @returns {Promise} - The promise which resolves to an array.
@@ -2986,8 +3005,8 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project and location) which owns this collection of Processors.
-   *   Format: `projects/{project}/locations/{location}`
+   *   Required. The parent (project and location) which owns this collection of
+   *   Processors. Format: `projects/{project}/locations/{location}`
    * @param {number} request.pageSize
    *   The maximum number of processors to return.
    *   If unspecified, at most 50 processors will be returned.
@@ -3088,8 +3107,8 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project and location) which owns this collection of Processors.
-   *   Format: `projects/{project}/locations/{location}`
+   *   Required. The parent (project and location) which owns this collection of
+   *   Processors. Format: `projects/{project}/locations/{location}`
    * @param {number} request.pageSize
    *   The maximum number of processors to return.
    *   If unspecified, at most 50 processors will be returned.
@@ -3138,8 +3157,8 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project and location) which owns this collection of Processors.
-   *   Format: `projects/{project}/locations/{location}`
+   *   Required. The parent (project and location) which owns this collection of
+   *   Processors. Format: `projects/{project}/locations/{location}`
    * @param {number} request.pageSize
    *   The maximum number of processors to return.
    *   If unspecified, at most 50 processors will be returned.
@@ -3187,8 +3206,9 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project, location and processor) to list all versions.
-   *   Format: `projects/{project}/locations/{location}/processors/{processor}`
+   *   Required. The parent (project, location and processor) to list all
+   *   versions. Format:
+   *   `projects/{project}/locations/{location}/processors/{processor}`
    * @param {number} request.pageSize
    *   The maximum number of processor versions to return.
    *   If unspecified, at most 10 processor versions will be returned.
@@ -3289,8 +3309,9 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project, location and processor) to list all versions.
-   *   Format: `projects/{project}/locations/{location}/processors/{processor}`
+   *   Required. The parent (project, location and processor) to list all
+   *   versions. Format:
+   *   `projects/{project}/locations/{location}/processors/{processor}`
    * @param {number} request.pageSize
    *   The maximum number of processor versions to return.
    *   If unspecified, at most 10 processor versions will be returned.
@@ -3339,8 +3360,9 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The parent (project, location and processor) to list all versions.
-   *   Format: `projects/{project}/locations/{location}/processors/{processor}`
+   *   Required. The parent (project, location and processor) to list all
+   *   versions. Format:
+   *   `projects/{project}/locations/{location}/processors/{processor}`
    * @param {number} request.pageSize
    *   The maximum number of processor versions to return.
    *   If unspecified, at most 10 processor versions will be returned.
@@ -3388,7 +3410,9 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The resource name of the {@link google.cloud.documentai.v1beta3.ProcessorVersion|ProcessorVersion} to list evaluations for.
+   *   Required. The resource name of the
+   *   {@link google.cloud.documentai.v1beta3.ProcessorVersion|ProcessorVersion} to
+   *   list evaluations for.
    *   `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
    * @param {number} request.pageSize
    *   The standard list page size.
@@ -3490,7 +3514,9 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The resource name of the {@link google.cloud.documentai.v1beta3.ProcessorVersion|ProcessorVersion} to list evaluations for.
+   *   Required. The resource name of the
+   *   {@link google.cloud.documentai.v1beta3.ProcessorVersion|ProcessorVersion} to
+   *   list evaluations for.
    *   `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
    * @param {number} request.pageSize
    *   The standard list page size.
@@ -3540,7 +3566,9 @@ export class DocumentProcessorServiceClient {
    * @param {Object} request
    *   The request object that will be sent.
    * @param {string} request.parent
-   *   Required. The resource name of the {@link google.cloud.documentai.v1beta3.ProcessorVersion|ProcessorVersion} to list evaluations for.
+   *   Required. The resource name of the
+   *   {@link google.cloud.documentai.v1beta3.ProcessorVersion|ProcessorVersion} to
+   *   list evaluations for.
    *   `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
    * @param {number} request.pageSize
    *   The standard list page size.