The Document Signature Cloud API allows developers to create, verify and search various signature types in multiple documents. This API exposes the REST interface to directly communicate with the RESTful APIs. You can also use any of the platform-specific Cloud SDKs or cURL commands to interact with the API. Supported file formats include; Word Processing documents, spreadsheets, presentations, PDF, text, rich text, Images, OpenDocument formats and more.
GroupDocs Cloud provides document manipulation Cloud APIs that allow you to view, convert, annotate, compare, sign, and classify documents in your applications.