Great news for developers! All new GroupDocs.Annotation Cloud 19.5 is introduced. We are committed to evolving GroupDocs.Annotation Cloud REST API to make it more simplified and easy to use. With this in mind, we’ve made necessary changes in this version. The new API is more optimized with less methods and options. Its internal architecture is revamped for fast and reliable processing to build Document & Image Annotation tools with support for Text & Figure based annotation operations. Also now the API includes methods for working with cloud storage. So you can perform storage operations using GroupDocs.Annotation Cloud REST API directly instead of using separate API.

Please check the detailed releasenotes of this version to get an idea about all the new features/enhancements made in this release.

Breaking Changes

New API Version

Introduced API version V2 in 19.5 version, V1 will remain available.


JWT(JSON Web Token) authentication is introduced in this release, now OAuth2 and URL signing authentication methods are obsolete now.

Annotation API

Simplified API methods to apply Text and Figure based annotations to documents & images of all popular formats.

Storage APIs

File API – Introduced methods for upload, download, copy, move, delete files : input documents and rendering results, in the cloud storage

Folder API - Introduced methods for create, copy, move, delete folders in the cloud storage

Storage API - Introduced methods for getting storage information and file information

Add Annotations to Document

Here we will show you how GroupDocs.Annotation Cloud V2 API version works and it is different than V1. We will add annotation in a Word document using GroupDocs.Annotation Cloud SDK for .NET by following these steps:

  • Upload source document to Storage
  • Add Annotaition to source document

We need to upload source document to Cloud storage as in this example we will process document from Cloud storage. In the release we introduced File API for file storage operations. We will use UploadFile method of Annotation V2 API version instead of GroupDocs.Storage Cloud API method to upload file to storage.

In 19.5 version, PUT method for import of annotation has been changed to POST method, as shown in following sample code.

V1.1 Example

V2.0 Example

Share Your Feedback

Your feedback is important! Please feel free to drop us a comment sharing your thoughts about the new version of GroupDocs.Annotation Cloud REST API. It helps us to continually improve and refine our API.