dynamsoft-docs · Ellie-dynamsoft · Sep 16, 2025 · Sep 16, 2025
diff --git a/_articles/extended-usage/advanced-initialization.md b/_articles/extended-usage/advanced-initialization.md
@@ -13,7 +13,6 @@ description: Advanced DWT Initialization
 
 As presented in the standard [initialization guide](/_articles/general-usage/initialization.md), DWT instantiates a default `WebTwain` object in its default configuration. Here, we offer some alternative ways to instantiate `WebTwain` objects, as well as ways to alter the configuration of `WebTwain` objects.
 
-> Note: jsDelivr currently has problems delivering the Dynamic Web TWAIN Service installer (`https://cdn.jsdelivr.net/npm/dwt@latest/dist/dist/DynamicWebTWAINServiceSetup.msi`) due to [size restrictions](https://www.jsdelivr.com/documentation#id-configuring-a-default-file-in-packagejson); please consider hosting this particular resource file elsewhere. UNPKG is currently unaffected. For information about the Dynamic Web TWAIN Service, learn more [here](/_articles/extended-usage/dynamsoft-service-configuration.md).
 
 ## Auto-Loading with CDN/Package Manager Resources
 
@@ -35,6 +34,53 @@ The resource files loaded from CDNs and package managers slightly differ from th
 
             Dynamsoft.DWT.ResourcesPath = "https://cdn.jsdelivr.net/dwt@latest/dist"; // Load supporting resources from here
             Dynamsoft.DWT.ProductKey = ""; // Add product key here
+            //You need to set the service installer location here since the installer's size exceeds jsdelivr's limit. 
+            //You'd better host the installers in your own environment.
+            Dynamsoft.DWT.ServiceInstallerLocation = 'https://unpkg.com/dwt/dist/dist/';
+            // Configure the default WebTwain instance
+            Dynamsoft.DWT.Containers = [{
+                ContainerId: 'dwtcontrolContainer', // Binds WebTwain to container by ID
+                Width: 270,
+                Height: 320
+            }];
+            // Instantiate the WebTwain instance upon loading resources
+            Dynamsoft.DWT.AutoLoad = true;
+
+            // Retrieve WebTwain object after initializing DWT
+            Dynamsoft.DWT.RegisterEvent("OnWebTwainReady", function () {
+                DWTObject = Dynamsoft.DWT.GetWebTwain("dwtcontrolContainer"); // Retrieve instantiated WebTwain object
+
+                // Include this block to verify WebTwain instantiation
+                /*
+                    if (DWTObject) {
+                        alert("WebTwain object instantiated");
+                    }
+                    */
+            });
+        </script>
+    </body>
+</html>
+```
+
+### Loading from UNPKG
+
+> [!WARNING]
+> UNPKG may not provide any guarantees of uptime or technical support.
+
+```html
+<html>
+    <head>
+        <!-- Load resources from UNPKG CDN -->
+        <script src="https://unpkg.com/dwt@19.2.0/dist/dynamsoft.webtwain.min.js"></script>
+    </head>
+
+    <body>
+        <div id="dwtcontrolContainer"></div> <!-- The WebTwain object binds to this div by default -->
+        <script>
+            var DWTObject; // Use this to store the WebTwain object after retrieval
+
+            Dynamsoft.DWT.ResourcesPath = "https://unpkg.com/dwt@19.2.0/dist"; // Load supporting resources from here
+            Dynamsoft.DWT.ProductKey = ""; // Add product key here
 
             // Configure the default WebTwain instance
             Dynamsoft.DWT.Containers = [{
@@ -76,7 +122,7 @@ APIs used:
 
 Setting values for `Dynamsoft.DWT.AutoLoad` and `Dynamsoft.DWT.Containers` results in identical startup behavior for resources obtained from CDNs and package managers to resources obtained from the official SDK.
 
-> Note: jsDelivr currently has problems delivering the Dynamic Web TWAIN Service installer (`https://cdn.jsdelivr.net/npm/dwt@latest/dist/dist/DynamicWebTWAINServiceSetup.msi`) due to [size restrictions](https://www.jsdelivr.com/documentation#id-configuring-a-default-file-in-packagejson); please consider hosting this particular resource file elsewhere. UNPKG is currently unaffected. For information about the Dynamic Web TWAIN Service, learn more [here](/_articles/extended-usage/dynamsoft-service-configuration.md).
+> Note: jsDelivr currently has problems delivering the Dynamic Web TWAIN Service installer (`https://cdn.jsdelivr.net/npm/dwt@latest/dist/dist/DynamicWebTWAINServiceSetup.msi`) due to [size restrictions](https://www.jsdelivr.com/documentation#id-configuring-a-default-file-in-packagejson); please consider hosting this particular resource file elsewhere. You can specify the path using [`ServiceInstallerLocation`](/_articles/info/api/Dynamsoft_WebTwainEnv.md#serviceinstallerlocation). UNPKG is currently unaffected. For information about the Dynamic Web TWAIN Service, learn more [here](/_articles/extended-usage/dynamsoft-service-configuration.md).
 
 ## Configuring Default `WebTwain` Instances
 
@@ -355,4 +401,4 @@ DWT operates under the `Dynamsoft` namespace, and most of its features may be fo
 
 - `Dynamsoft.Lib`
 
-    This contains information such as environment detection results (`Dynamsoft.Lib.env`), and global methods such as `showMask()` and `hideMask()`.
+    This contains information such as environment detection results (`Dynamsoft.Lib.env`), and global methods such as `showMask()` and `hideMask()`.
diff --git a/_articles/extended-usage/barcode-processing.md b/_articles/extended-usage/barcode-processing.md
@@ -133,6 +133,8 @@ DWTObject.Addon.BarcodeReader.getRuntimeSettings()
     });
 ```
 
+See also [`EnumBarcodeFormat`](https://www.dynamsoft.com/barcode-reader/docs/v9/web/programming/javascript/api-reference/enum/EnumBarcodeFormat.html?ver=9.6.42) and [`EnumBarcodeFormat_2`](https://www.dynamsoft.com/barcode-reader/docs/v9/web/programming/javascript/api-reference/enum/EnumBarcodeFormat_2.html?ver=9.6.42).
+
 ### Specify maximum barcode count
 
 By default, the add-on will read as many barcodes as it can. To increase the recognition efficiency, you can use `expectedBarcodesCount` to specify the maximum number of barcodes to recognize according to your scenario.

diff --git a/_articles/faq/dwt-with-annotation.md b/_articles/faq/dwt-with-annotation.md
@@ -114,15 +114,21 @@ API Reference
     - [`openDocument()`](https://www.dynamsoft.com/document-viewer/docs/api/class/editviewer.html#opendocument)  
 
 ### 3.3 Create a Viewerless Dynamic Web TWAIN Instance
+
+Reference a CDN like `jsDelivr` to fetch most resources using `Dynamsoft.DWT.ResourcesPath`. Notably these resources exclude DWT Service installers, which exceed the `jsDelivr` CDN per-file size limit. You have a few options to set this path with `Dynamsoft.DWT.ServiceInstallerLocation`:
+
+1. [Install the DWT SDK](https://www.dynamsoft.com/web-twain/downloads/), extract the DWT service installers (under path like `C:\Program Files (x86)\Dynamsoft\Dynamic Web TWAIN SDK 19.2\Resources\dist`), then self-host the DWT Service installers with `Dynamsoft.DWT.ServiceInstallerLocation = "https://example.com/DWT/Resources/dist"`.
+2. Use a different CDN with a higher per-file size limit by referencing the location with `Dynamsoft.DWT.ServiceInstallerLocation = "https://unpkg.com/dwt@19.2.0/dist/dist"`.
+
 ```javascript
 // Create Dynamic Web TWAIN object
 // Public trial license which is valid for 24 hours
 // You can request a 30-day trial key from https://www.dynamsoft.com/customer/license/trialLicense/?product=dwtddv
 Dynamsoft.DWT.ProductKey = "DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9";
 Dynamsoft.DWT.UseDefaultViewer = false;
 Dynamsoft.DWT.ResourcesPath = "https://cdn.jsdelivr.net/npm/dwt@19.2.0/dist";
-// You need to set the service installer location here since the installer's size exceeds jsdelivr's limit. You'd better host the installers in your own environment.
-Dynamsoft.DWT.ServiceInstallerLocation = 'https://download2.dynamsoft.com/Demo/DWT/Resources/dist/';
+// Do not forget to set your installer path
+Dynamsoft.DWT.ServiceInstallerLocation = "YOUR_INSTALLER_PATH_HERE";
 
 let DWObject;
 // Create a Dynamic Web TWAIN instance without the built-in viewer
@@ -317,8 +323,8 @@ let DWObject, editViewer, ddvDoc;
     Dynamsoft.DWT.ProductKey = license;
     Dynamsoft.DWT.UseDefaultViewer = false;
     Dynamsoft.DWT.ResourcesPath = "https://cdn.jsdelivr.net/npm/dwt@19.2.0/dist";
-    // You need to set the service installer location here since the installer's size exceeds jsdelivr's limit. You'd better host the installers in your own environment.
-    Dynamsoft.DWT.ServiceInstallerLocation = 'https://download2.dynamsoft.com/Demo/DWT/Resources/dist/';
+    // Do not forget to set your installer path
+    Dynamsoft.DWT.ServiceInstallerLocation = "YOUR_INSTALLER_PATH_HERE";
 
     // Create a Dynamic Web TWAIN instance without the built-in viewer
     Dynamsoft.DWT.CreateDWTObjectEx({

diff --git a/_articles/info/api/interfaces.md b/_articles/info/api/interfaces.md
@@ -2028,8 +2028,8 @@ interface TextResult {
 }
 ```
 
-- [`EnumBarcodeFormat`](https://www.dynamsoft.com/barcode-reader/docs/web/programming/javascript/api-reference/enum/EnumBarcodeFormat.html?ver=9.6.33)
-- [`EnumBarcodeFormat_2`](https://www.dynamsoft.com/barcode-reader/docs/web/programming/javascript/api-reference/enum/EnumBarcodeFormat_2.html?ver=9.6.33)
+- [`EnumBarcodeFormat`](https://www.dynamsoft.com/barcode-reader/docs/v9/web/programming/javascript/api-reference/enum/EnumBarcodeFormat.html?ver=9.6.42)
+- [`EnumBarcodeFormat_2`](https://www.dynamsoft.com/barcode-reader/docs/v9/web/programming/javascript/api-reference/enum/EnumBarcodeFormat_2.html?ver=9.6.42)
 - [`LocalizationResult`](/_articles/info/api/interfaces.md#localizationresult) 
 - [`Result`](/_articles/info/api/interfaces.md#result)
 
@@ -2130,7 +2130,7 @@ interface RuntimeSettings {
 
 - [`FurtherModes`](/_articles/info/api/interfaces.md#furthermodes)
 - [`Region`](/_articles/info/api/interfaces.md#region)
-- For more detailed information, please [click the link](https://www.dynamsoft.com/barcode-reader/docs/web/programming/javascript/api-reference/interface/RuntimeSettings.html?ver=9.6.42) to view.
+- For more detailed information, please [click the link](https://www.dynamsoft.com/barcode-reader/docs/v9/web/programming/javascript/api-reference/interface/RuntimeSettings.html?ver=9.6.42) to view.
 
 ### FurtherModes
 
@@ -2154,7 +2154,7 @@ interface FurtherModes {
 }
 ```
 
-- For more detailed information, please [click the link](https://www.dynamsoft.com/barcode-reader/docs/web/programming/javascript/api-reference/interface/furthermodes.html?ver=9.6.42) to view.
+- For more detailed information, please [click the link](https://www.dynamsoft.com/barcode-reader/docs/v9/web/programming/javascript/api-reference/interface/furthermodes.html?ver=9.6.42) to view.
 
 ### Region
 
@@ -2169,7 +2169,7 @@ interface Region {
     regionTop: number;
 }
 ```
-- For more detailed information, please [click the link](https://www.dynamsoft.com/barcode-reader/docs/web/programming/javascript/api-reference/interface/Region.html?ver=9.6.42) to view.
+- For more detailed information, please [click the link](https://www.dynamsoft.com/barcode-reader/docs/v9/web/programming/javascript/api-reference/interface/Region.html?ver=9.6.42) to view.
 
 ## FileUploader
 

diff --git a/_articles/info/api/restful.md b/_articles/info/api/restful.md
@@ -1816,7 +1816,7 @@ fetch(url, requestOptions)
 
 Create a new document process to read a barcode on a scanned page.
 
-Barcode scanning requires a valid Barcode Reader Add-On license. Blank page detection is only supported on Windows.
+Barcode scanning requires a valid Barcode Reader Add-On license.
 
 #### Parameters
 
@@ -2020,8 +2020,6 @@ HTTP Status Code **200**
 
 Create a new document process to check if a scanned page is blank.
 
-Blank page detection is **only supported on Windows**.
-
 #### Parameters
 
 |Name|Location|Type|Required|Restrictions|Description|
-Original file line number
+Diff line change
@@ Expand Up / @@ -133,6 +133,8 @@ DWTObject.Addon.BarcodeReader.getRuntimeSettings() @@
         });
     ```
+    See also [`EnumBarcodeFormat`](https://www.dynamsoft.com/barcode-reader/docs/v9/web/programming/javascript/api-reference/enum/EnumBarcodeFormat.html?ver=9.6.42) and [`EnumBarcodeFormat_2`](https://www.dynamsoft.com/barcode-reader/docs/v9/web/programming/javascript/api-reference/enum/EnumBarcodeFormat_2.html?ver=9.6.42).
     ### Specify maximum barcode count
     By default, the add-on will read as many barcodes as it can. To increase the recognition efficiency, you can use `expectedBarcodesCount` to specify the maximum number of barcodes to recognize according to your scenario.
@@ Expand Down @@