Fix Acrobat Reader Mobile Offline PDF Annotations Not Syncing
Question details
The user is unable to sync PDF annotations made offline in Acrobat Reader Mobile to the cloud after restoring their internet connection.

- Product
- Acrobat Reader Mobile
- Device & OS
- Android
- Scenario
- Editing a cloud-stored PDF document offline by adding highlights and underlines, then reconnecting to the internet to save the changes.
- Observed behavior
- The annotations do not automatically synchronize to the cloud storage after the mobile device reconnects to the network.
Ensure your mobile device is actively connected to a stable Wi-Fi or cellular network, and verify that your cloud storage account is properly logged in within the app.
Force Cloud Sync by Reopening the PDF Document
Trigger the app's automatic background synchronization process by securely closing and refreshing the file.
Acrobat Reader Mobile is designed to sync cloud documents automatically in the background once a network connection is detected. However, if the process stalls, manually refreshing the active document can force the app to push your offline edits to the cloud.
Tap the 'Back' arrow or the 'Close' button in the top corner of the Acrobat Reader Mobile interface to exit your currently open PDF.
Wait a few seconds to ensure your device has fully re-established its connection to the internet.
Navigate to your 'Files' or cloud storage list within the app and tap the same PDF document to reopen it. This action forces the app to request the latest sync state and upload your local changes.

Gather Diagnostics and Contact Support
If the manual refresh fails to sync your annotations, collect specific device and app details to escalate the issue.
Annotate and Sync PDFs Effortlessly with WPS Office
Avoid sync failures and streamline your document workflow with WPS Office. With reliable built-in cloud synchronization, you can easily annotate PDFs on the go and automatically backup your edits across all your devices without hassle.
- 1. Install WPS Office: Download and open the free WPS Office app on your mobile device.
- 2. Enable WPS Cloud: Log in to your WPS account and enable cloud synchronization for your files.
- 3. Annotate offline: Open your PDF document and use the rich 'Annotation' tools like highlights, underlines, and comments even without an internet connection.
- 4. Auto-sync seamlessly: Once your device reconnects to a network, WPS Office will automatically and reliably push all your annotations to the cloud.

Frequently Asked Questions
Why do my PDF highlights disappear when I open the file on my computer?
This usually indicates that the annotations you made on your mobile device haven't fully synchronized to the cloud. You must ensure your mobile device connects to the internet and finishes uploading the latest version of the file before opening it elsewhere.
Can I edit and annotate PDF files offline?
Yes, most modern PDF readers allow you to add offline annotations such as highlights, underlines, and comments. The app will save these changes locally and push them to your connected cloud storage once you restore your network connection.
How do I force my mobile PDF reader to sync with the cloud?
If background syncing stalls, you can typically force a synchronization by closing the active PDF document entirely and reopening it from your file manager or cloud document list while connected to a stable internet network.




