Other PDF Issues

How to Fix PDF Comments and Tags Disappearing in Acrobat Reader

Natalie TaylorNatalie Taylor Oct 27, 2026 869 views

Question details

Users report data loss where tags, highlights, and comments added to PDF documents fail to save and disappear after closing the Acrobat Reader application.

Fix PDF Comments and Tags Disappearing After Closing Acrobat Reader
Product
Adobe Acrobat Reader
Device & OS
iOS
Scenario
Editing a PDF document by adding annotations or comments and subsequently closing the application or putting the device to sleep.
Observed behavior
All recently added tags, highlights, and comments are lost and not reflected in the PDF document upon reopening.
Before you start

Verify that your device has sufficient storage space to save local document changes, and ensure you have a stable internet connection if working with files stored in cloud services.

Solution 1Recommended

Save Changes Correctly and Update the Application

Ensure you are actively saving your annotations and using the latest version of the app to prevent known bug-related data loss.

Failing to manually commit changes before exiting the app or running an outdated version with known syncing bugs are the primary reasons for lost PDF annotations.

1
Commit your edits

Tap the 'Done' button in the upper corner immediately after adding comments or highlights to ensure the changes are finalized.

2
Check for updates

Open the App Store on your iOS device, tap your profile icon, and check for available updates for Adobe Acrobat Reader.

3
Install the latest version

Install version 19.01.01 or later, which contains specific developer patches designed to fix the lost-comments issue.

Save Changes Correctly and Update the Application
Cloud Storage Syncing: If your PDF is stored in Google Drive, Dropbox, or Document Cloud, ensure the app fully synchronizes before closing it or putting your device to sleep.

Edit and Save PDF Comments Seamlessly with WPS Office

Avoid frustrating data loss by using the highly stable WPS PDF editor. WPS Office provides a reliable, user-friendly environment to highlight, comment, and save PDF documents automatically on any device.

  1. 1. Open your PDF: Launch the WPS Office app on your mobile device or computer and open your PDF document.
  2. 2. Access annotation tools: Navigate to the 'Annotate' or 'Comment' tab located in the top menu bar.
  3. 3. Add your comments: Use the Highlight, Text Box, Note, or Draw tools to add your annotations directly onto the document.
  4. 4. Save changes securely: Click the 'Save' icon or tap 'Done' to instantly secure your changes to your local device or WPS Cloud storage.
Robust PDF annotation tools that reliably save highlights and comments.Fully compatible with standard PDF files and Microsoft Office formats (Word, Excel, PowerPoint).Lightweight, all-in-one free office suite for seamless document management.Automatic synchronization across mobile devices and desktop computers via WPS Cloud.
microsoft office alternative - wps office

Frequently Asked Questions

Why do my PDF highlights disappear when I reopen the file?

This typically occurs if the application was closed before the save action fully completed, if there was a synchronization interruption with your cloud storage, or due to a known saving bug in older versions of the PDF reader.

Does tapping 'Done' guarantee my comments are saved?

Yes, tapping 'Done' actively commits your current edits to the document file. However, if the file is stored in an external cloud service, you must also allow sufficient time for the network upload to finish before closing the app.

Can putting my device to sleep cause PDF data loss?

Yes. If your phone or tablet goes to sleep or locks while the PDF application is still actively writing data to local storage or syncing to the cloud, the process may be terminated, leading to unsaved comments.

Are my lost PDF comments recoverable?

Unfortunately, if the comments were not successfully committed to the storage drive before the app closed or crashed, they cannot be recovered unless the application successfully generated an automatic background backup file.