> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/appian/get-started/faq/how-to-annotate-collaborate-create-an-approval-workflow-on-documents-in-appian.md).

# How to annotate / collaborate / create an approval workflow on documents in Appian?

World's #1 PDF SDK Library for Web, Mobile, Server, Desktop

You can use Apryse WebViewer's annotation capabilities to annotate and collaborate on documents in Appian. Ensure that the `enableAnnotations` is not set to false (it defaults to true). You can use the `Annotate` ribbon to annotate files by drawing, highlighting, inserting shapes, signing and more. All annotations show up on the comments panel, where you can interact with other Appian users (approve/respond to comments etc). You can save documents with annotations in them (called flattening a document) or you can save annotations seperately from the document as a text string (called an XFDF string).


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