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Fix PDF Comments and Highlights Disappearing After Saving on Mac
Question details
Users are unable to retain comments, highlights, and annotations after saving and reopening PDF files.
- Product
- Adobe Acrobat Pro
- Device & OS
- macOS
- Scenario
- Adding annotations to a PDF file on a Mac, saving the document, and then reopening it.
- Observed behavior
- The newly added comments, highlights, and annotations completely disappear upon reopening the saved file.
Verify that your PDF document is not restricted by security passwords and temporarily disable any cloud-syncing services (like iCloud or OneDrive) for the folder where the file is stored.
Use Save As and Verify File Permissions
Saving a new local copy of the PDF prevents conflicts with cloud synchronization and ensures the file is not set to read-only.
Often, files stored in synchronized locations or with restricted permissions fail to save new data properly. Creating a fresh local copy bypasses these restrictions.
In Adobe Acrobat, click on 'File' in the top menu bar and select 'Save As'. Choose a local directory on your Mac, such as the Desktop or Documents folder.
Locate the saved file in Finder, right-click (or Control-click) it, and select 'Get Info'.
In the Get Info window, ensure the 'Locked' checkbox is unchecked. Expand 'Sharing & Permissions' at the bottom to verify your user account has 'Read & Write' privileges.
Update or Repair Adobe Acrobat
Software bugs can prevent annotations from saving. Updating or resetting the application can restore normal functionality.
Securely Annotate and Save PDFs with WPS Office
Avoid the frustration of losing your document annotations. WPS Office features a robust, built-in PDF editor for Mac that securely saves all your highlights, comments, and notes without complex permission or syncing issues.
- 1. Open your PDF: Launch WPS Office and open the PDF document you wish to edit.
- 2. Access annotation tools: Click on the 'Comment' tab in the top navigation ribbon to reveal all annotation options.
- 3. Highlight and comment: Select the 'Highlight' tool to mark text, or choose 'Note' to add descriptive comments to specific sections.
- 4. Save your work: Click the 'Save' icon in the top left corner or press Cmd+S. Your annotations will be securely embedded into the PDF.
Frequently Asked Questions
Why are my PDF highlights not saving on my Mac?
This usually happens when the PDF is marked as Read-Only, is locked by macOS permissions, or is stored in a cloud folder (like iCloud) that fails to sync changes properly. Corrupted application preferences can also cause this issue.
Can I recover PDF comments that disappeared after saving?
If the comments did not write to the file during the save process, they generally cannot be recovered from the application itself. However, you can check if your Mac's Time Machine or your cloud storage version history has a previously saved iteration of the file.
How do I ensure my PDF annotations are visible to others?
To ensure annotations are visible regardless of the PDF viewer being used, you can 'flatten' the PDF. This merges the comments and highlights directly into the document's base layer so they cannot be removed or hidden by incompatible viewers.
Is there a free alternative to Acrobat for highlighting PDFs on Mac?
Yes, Mac's built-in Preview app allows basic highlighting and commenting. For a more comprehensive suite that handles heavy annotation, form filling, and format conversion, WPS Office offers a free and highly compatible PDF editor for Mac users.
