Processor’s API lets you import annotations in Instant JSON and the XFDF format. You can also flatten annotations to embed them in a file and make sure they can no longer be edited.

You can import Instant JSON files and flatten annotations as a part of the Document Editor component, while XFDF support is an additional component of its own. Please reach out to us if you’re interested in adding these components to your license or if you want to provide feedback and feature requests related to your use case.