GroupDocs.Viewer Cloud is a REST API for rendering over 50 documents and image formats as HTML5 or Image formats for the whole document, page by page or custom range of pages.

Security and Authentication

The GroupDocs.Viewer Cloud API is secured and requires authentication. Developers can create an app access key ID (appSID) and app secret access key when they register. Authenticated requests require a signature and AppSID query parameters or OAuth 2.0 athrorization header. You can see complete detail here.


GroupDocs.Viewer Cloud comes with SDKs for different platforms to use this REST API in your specific project effortlessly. Checkout our GitHub repository for a complete list of GroupDocs.Viewer SDKs along with working examples, to get you started in no time.

API Explorer

The easiest way to try out our API right away in your browser! With the GroupDocs Cloud Web API explorer. This is a collection of Swagger documentation for the GroupDocs.

CloudAPIs. You can get information about all the resources in the API. It also provides testing and interactivity to our API endpoint documentation.