diff --git a/File-Formats-toc.html b/File-Formats-toc.html
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--- a/File-Formats-toc.html
+++ b/File-Formats-toc.html
@@ -651,10 +651,11 @@
 				</li>
 				<li><a href="/file-formats/pdf/Open-and-Save-PDF-file-in-C-Sharp-VB-NET">Open PDF files</a>
 				<ul>
-					<li><a href="/file-formats/pdf/open-pdf-files/to-google-drive">To Google Drive</a></li>
-					<li><a href="/file-formats/pdf/open-pdf-files/to-dropbox-cloud-file-storage">To Dropbox cloud file storage</a></li>
-					<li><a href="/file-formats/pdf/open-pdf-files/to-azure-blob-storage">To Azure blob storage</a></li>
-					<li><a href="/file-formats/pdf/open-pdf-files/to-google-cloud-storage">To Google Cloud storage</a></li>
+					<li><a href="/file-formats/pdf/open-pdf-files/from-google-drive">From Google Drive</a></li>
+					<li><a href="/file-formats/pdf/open-pdf-files/from-dropbox-cloud-file-storage">From Dropbox cloud file storage</a></li>
+					<li><a href="/file-formats/pdf/open-pdf-files/from-azure-blob-storage">From Azure blob storage</a></li>
+					<li><a href="/file-formats/pdf/open-pdf-files/from-google-cloud-storage">From Google Cloud storage</a></li>
+					<li><a href="/file-formats/pdf/open-pdf-files/from-amazon-s3">From AWS S3</a></li>
 				</ul>
 				</li>
 				<li><a href="/file-formats/pdf/Open-and-Save-PDF-file-in-C-Sharp-VB-NET">Save PDF files</a>
@@ -663,6 +664,7 @@
 					<li><a href="/file-formats/pdf/save-pdf-files/to-dropbox-cloud-file-storage">To Dropbox cloud file storage</a></li>
 					<li><a href="/file-formats/pdf/save-pdf-files/to-azure-blob-storage">To Azure blob storage</a></li>
 					<li><a href="/file-formats/pdf/save-pdf-files/to-google-cloud-storage">To Google Cloud storage</a></li>
+					<li><a href="/file-formats/pdf/save-pdf-files/to-amazon-s3">To AWS S3</a></li>
 				</ul>
 				</li>
             <li><a href="/file-formats/pdf/working-with-document">Working with Document</a></li>
diff --git a/File-Formats/PDF/Open-pdf-files/To-AWS-S3.md b/File-Formats/PDF/Open-pdf-files/From-AWS-S3.md
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diff --git a/File-Formats/PDF/Open-pdf-files/To-azure-blob-storage.md b/File-Formats/PDF/Open-pdf-files/From-azure-blob-storage.md
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rename from File-Formats/PDF/Open-pdf-files/To-azure-blob-storage.md
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diff --git a/File-Formats/PDF/Open-pdf-files/To-dropbox-cloud-file-storage.md b/File-Formats/PDF/Open-pdf-files/From-dropbox-cloud-file-storage.md
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rename from File-Formats/PDF/Open-pdf-files/To-dropbox-cloud-file-storage.md
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diff --git a/File-Formats/PDF/Open-pdf-files/To-google-cloud-storage.md b/File-Formats/PDF/Open-pdf-files/From-google-cloud-storage.md
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rename from File-Formats/PDF/Open-pdf-files/To-google-cloud-storage.md
rename to File-Formats/PDF/Open-pdf-files/From-google-cloud-storage.md
diff --git a/File-Formats/PDF/Open-pdf-files/To-google-drive.md b/File-Formats/PDF/Open-pdf-files/From-google-drive.md
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rename from File-Formats/PDF/Open-pdf-files/To-google-drive.md
rename to File-Formats/PDF/Open-pdf-files/From-google-drive.md