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Fix Comments Disappearing from PDFs in Acrobat Reader on Android
Question details
Users need to resolve an issue where comments and annotations made on a PDF file vanish after the document is saved and reopened on a mobile device.
- Product
- Adobe Acrobat Reader
- Device & OS
- Android
- Scenario
- Adding comments and annotating a PDF document on an Android mobile device.
- Observed behavior
- Comments successfully added to the PDF disappear entirely once the file is saved, closed, and reopened in the application.
Ensure that your Android device has a stable internet connection if you are saving directly to a cloud service, and verify that the original PDF file does not have read-only or strict editing restrictions applied.
Update App Version and Verify Local Save Location
Outdated application versions or incomplete cloud syncing can prevent comments from being permanently written to the PDF file.
A common cause of disappearing annotations on Android is the failure to properly write changes to the file before the app is closed. Forcing a local save usually circumvents cloud-sync interruptions.
Open the Google Play Store on your Android device, search for Adobe Acrobat Reader, and tap 'Update' to ensure you have the latest bug fixes installed.
After adding your comments, tap the 'More' (three dots) menu, select 'Save a Copy', and explicitly choose 'On This Device' to save the file locally.
Completely close the PDF reader, open your device's file manager, navigate to the local folder where you saved the copy, and open it to confirm the comments are visible.
Clear the PDF Reader App Cache
Clearing corrupted temporary cache files on your Android device can resolve unexpected save glitches.
Never Lose Your PDF Comments with WPS Office for Android
Avoid syncing glitches and lost annotations by using WPS Office. Its built-in PDF editor for Android allows you to highlight, comment, and save PDFs locally or to the cloud with complete reliability.
- 1. Open the PDF in WPS Office: Launch the WPS Office app on your Android device and tap 'Open' to locate and open your PDF file.
- 2. Access Annotation Tools: Tap 'Tools' at the bottom of the screen, select the 'Annotation' tab, and choose your preferred tool, such as highlights, underlines, or text comments.
- 3. Add Your Comments: Tap on the document to insert your text notes or drag your finger across the text to apply highlights.
- 4. Save the Changes Securely: Tap the floppy disk 'Save' icon at the top of the screen. Choose your save path (Local or WPS Cloud) to permanently lock the comments into the file metadata.
Frequently Asked Questions
Why do my PDF comments disappear when I save on my Android device?
This usually happens due to incomplete cloud synchronization, an outdated application version that fails to write the data, or attempting to save changes to a file located in a restricted or read-only directory.
Can I recover PDF comments that disappeared after closing the app?
If the comments were not successfully saved to the document's metadata before the app was closed, they generally cannot be recovered. It is highly recommended to do a test save and reopen the file immediately when starting a long annotation session.
Are comments made in WPS Office for Android visible on a PC?
Yes, WPS Office saves all annotations utilizing standard PDF formatting protocols. Any highlights or comments you add on your Android device will remain fully visible and editable when you open the file on a PC using WPS Office, Adobe Acrobat, or any standard PDF reader.
