Brief Title:

"Collaboration Synchronizer Error After Adobe Acrobat Pro Update (25.1.20937 and 25.1.20918)"

Steps to Reproduce the Issue:

Update Adobe Acrobat Pro to version 25.1.20937 or 25.1.20918 (released Nov 2025).

Launch Adobe Acrobat Pro on a domain-connected PC (running Windows 10/11).

Open a PDF file (preferably from a network drive or cloud-based service such as OneDrive, SharePoint).

Perform normal tasks such as reading or editing the PDF.

Close Adobe Acrobat Pro after completing tasks.

The Collaboration Synchronizer error will appear upon closing Acrobat Pro.

Environment (OS, other related application versions, etc.):

Operating System: Windows 10/11 Enterprise (Domain-connected PCs)

Acrobat Pro Version: 25.1.20937 or 25.1.20918 (Updated Nov 2025)

Network Setup: Domain environment, networked file storage (network drives, cloud-based services like OneDrive/SharePoint)

Security Software: [Specify if any specific security software is used, e.g., ESET, Symantec, McAfee]

Other Software: [Any other applications running that may be relevant, such as Adobe Acrobat Reader, Microsoft Office, cloud sync tools]

Expected Result:

Adobe Acrobat Pro should close normally without showing any errors.

The Collaboration Synchronizer should complete its task or sync without causing crashes or errors.

Observed Result:

Upon closing Adobe Acrobat Pro on a domain-connected PC, a Collaboration Synchronizer error is displayed.

This issue does not occur on non-domain machines or on local files.

Users working from network drives or cloud services experience this error more frequently.

This version includes both 25.1.20937 and 25.1.20918, covering both the recent updates where the issue was observed. You can now submit it to Adobe Support through their bug submission process.