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Enable commenting for Reader users in Acrobat Pro
Last updated on
Oct 22, 2026
Try it in the app
Invite people to view, review, or sign your PDF in a few simple steps.
Learn how to enable commenting rights in a PDF so users can access commenting tools in Reader.
Users with Reader 8 or later can add comments and participate in reviews when commenting rights are enabled in a PDF. In Reader, a document message bar and commenting tools become available only when commenting rights are enabled.
Commenting rights are automatically enabled when you start a managed review. You can manually allow commenting rights if you share a PDF outside a managed review, such as via email.
Note
If you enable commenting for Reader in a digitally signed document, the signature is invalidated.
Select Menu (Windows) or File (macOS) > Save as other > Reader extended PDF > Enable Commenting & Measuring.
In the dialog box that opens, select OK.
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