How to Fix Adobe Acrobat Shared Review Duplicating Comments and Markups
Question details
Users need a way to stop PDF comments and markups from duplicating during a shared electronic review.

- Product
- Adobe Acrobat Pro DC
- Device & OS
- Windows 10 Pro
- Scenario
- Conducting paperless collaborative electronic reviews using shared folders on a local network review server.
- Observed behavior
- Original comments and sticky notes duplicate themselves automatically within the shared review, while user replies to those comments remain unaffected.
Before applying any synchronization fixes, ensure you completely back up the original PDF document and the review data folder on your local network to prevent accidental data loss during troubleshooting.
Standardize Acrobat Versions and Network Settings
Synchronization conflicts and duplicated markups usually occur when users have mismatched Acrobat versions or experience unstable local network server access.
In a local network review environment, Adobe Acrobat continuously writes markup data to a shared folder. If a connection drops briefly, or if reviewers are using varying versions of Acrobat DC, the software may fail to recognize existing comments and synchronize them as new duplicate entries.
Ensure all reviewers update their Adobe Acrobat Pro DC to the exact same continuous release version via the 'Help' > 'Check for Updates' menu.
Confirm that every reviewer's workstation has stable, uninterrupted read and write permissions to the local network review server hosting the shared PDF.
Instruct users to avoid opening the shared review simultaneously from multiple computers or remote locations using the exact same user profile.

Repair the Adobe Acrobat Installation
Built-in defects or corrupted installation files on a reviewer's computer can trigger markup rendering and syncing errors.
Collaborate and Comment on PDFs with WPS Office
Avoid complex local network server sync errors by utilizing WPS PDF for your paperless reviews. WPS Office provides intuitive, lightweight, and highly compatible commenting tools for robust document collaboration.
- 1. Open Your Document: Launch WPS Office and open your target PDF document.
- 2. Access Comment Tools: Navigate to the 'Comment' tab on the top ribbon to find sticky notes, highlights, and text boxes.
- 3. Insert Markups: Click directly on the document where you want to leave feedback and type your comments.
- 4. Share the File: Save the document and share it with your team, confidently retaining all standardized PDF markup formatting.

Frequently Asked Questions
Why do sticky notes duplicate in Adobe Shared Reviews?
Duplication is generally caused by synchronization conflicts, brief network interruptions to the review server during save operations, or software version discrepancies between the reviewers' PDF applications.
Will deleting duplicated comments affect the original replies?
Deleting the duplicated parent comment might orphan or delete the nested replies depending on how the software processes the synchronization data. It is highly recommended to resolve the server sync issue before attempting to mass-delete duplicate comments.
Can network drops cause PDF review files to corrupt?
Yes, if a reviewer's connection to the local network review server drops while the software is writing markup data, it can cause corrupted XML records, leading to missing or duplicated comments upon the next synchronization.




