GroupDocs.Annotation for .NET is a downloadable library that allows developers to add cross-platform, multi-format document annotation functionality to any web-based app or site. Recently we’ve created an add-on specifically for Concrete5 users to make it easy to integrate the library into their websites. The add-on has been approved by Concrete5 admins and is now available for download from the official Concrete5 marketplace. How can Concrete5 site owners and developers benefit from this release?...an annotation widget to any page within your website. Supported...option, please refer to this page , and if you are interested...