This plugin hasn’t been tested with the latest three major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

GroupDocs.Annotation for .NET | HTML5 Document Annotation


This plugin integrates the .NET version of the GroupDocs HTML5 document annotation tool into WordPress CMS. It allows your users to view, annotate, collaborate on and share over 50 types of documents and images right on your website.

Different from the cloud-based plugin released earlier, this one integrates the downloadable .NET library. The library can be deployed on-premises, meaning you can store and host documents locally.

Key Features & Benefits

Multiple File Formats Support. GroupDocs.Annotation enables your users to view and annotate literally all common business document and image file formats without the need to install the original software that they were created in. Supported file formats include: PDF and Microsoft Word documents, Excel and CSV spreadsheets, PowerPoint slides, Visio diagrams, CAD drawings, raster images (TIFF, JPEG, PNG, GIF, BMP) and a lot more.

Cross-Platform Compatibility. Documents embedded to your website can be viewed and annotated from any HTML5-complient browser, including IE8+, FireFox, Chrome, Opera, Safari 5+ and their mobile versions.

Comprehensive Set of Annotation Tools. Users can add sticky notes, draw freehand lines, underline/strike out text, drop arrows, redact text and images, add watermarks, etc.

Real-Time Annotation Mode. The same document can be annotated by several users at a time. Users can easily invite others to review/annotate a document, reply to each other’s comments and then print, download or share the annotated document – all from within your website.

Support for Native PDF & Word Annotations. PDF or DOC/DOCX files annotated online can then be exported to a PDF or Word document respectively with the annotations in them for further offline editing.

Complete Control Over Document Security. GroupDocs.Annotation allows you to protect your content from unauthorized copying while still sharing it. Simply disable the document downloading, printing and text coping options, then add watermarks to protect your content from screen-grabbing. You can also control what access rights and functionality are available for what users.

Installation Instructions

Please note! This plugin requires the GroupDocs.Annotation for .NET library to be installed first. For more information on the GroupDocs HTML5 annotator, as well as to download a free evaluation copy of the library, please visit GroupDocs website at:

For detailed installation and usage instructions, please see this page


Please note: In order to use this plugin, you will need to buy a GroupDocs.Annotation for .NET Library license. We offer a free evaluation version so that you can test it before committing. For more details on the library, please see the product page.

  1. Before using this plugin you must install the GroupDocs.Annotation for .NET library on your server.
  2. Download and unzip the plugin.
  3. Upload the entire “groupdocs-annotation-for-dot-net-html5-document-annotation” folder to the “/wp-content/plugins/” directory.
  4. Activate the plugin through the “Plugins” menu in WordPress.
  5. In the popup window to a new GroupDocs.Annotation post, add the server URL where you’ve installed the GroupDocs.Annotation for .NET library
  6. Now you can add the GroupDocs.Annotation for .NET shortcode to your WordPress pages and posts.


Is this a free plugin?

This plugin is free only for registered users of the GroupDocs.Annotation for .NET Library. In order to use the plugin, you need to buy a license first. We offer a free evaluation version of the library, so that you can test it before committing. For more details on the GroupDocs.Annotation for .NET Library, please see the product’s page.


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Contributors & Developers

“GroupDocs.Annotation for .NET | HTML5 Document Annotation” is open source software. The following people have contributed to this plugin.

Change log


  • Initial release.