Fix Adobe Acrobat Custom Stamps Not Saving New Vendors
Question details
The user is unable to permanently save new vendors to custom Adobe stamps, as the data is lost whenever the application is restarted.

- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Adding a new vendor to an existing custom stamp for future document processing.
- Observed behavior
- The newly added vendor is available during the active Acrobat session but disappears entirely after Adobe Acrobat is closed and reopened.
Ensure you are logged in with administrative privileges, as resolving this issue requires checking and modifying system file permissions in your user profile directories.
Verify and Fix Roaming Profile Folder Permissions
This ensures Adobe Acrobat has the necessary read and write permissions to save your custom stamp changes directly to the PDF and JavaScript files.
Adobe Acrobat stores custom stamp data in your user roaming profile. If the application cannot write to this directory due to restrictive permissions, any new stamp data added during a session will be lost upon closing.
Navigate to your Adobe Acrobat roaming profile directory, typically found at C:\Users\[YourUsername]\AppData\Roaming\Adobe\Acrobat\[Version]\Stamps.
Right-click the 'Stamps' folder and select 'Properties' from the context menu.
Switch to the 'Security' tab, select your user account, and click 'Edit' to ensure that 'Full Control' or 'Write' permissions are checked and allowed.
Click 'Apply' to save the permission changes. Open Adobe Acrobat, add a vendor to your custom stamp, and restart the application to verify that the vendor is now permanently saved.

Relocate Stamp Files to a Local Directory
Bypass potential roaming profile synchronization or permission restrictions by moving the stamp files to a fully writable local folder.
Add and Manage Custom Stamps Easily in WPS PDF
Skip the complex file permission troubleshooting and scripting errors. WPS Office provides a streamlined, built-in PDF editor that allows you to effortlessly create, save, and manage custom stamps without losing your data between sessions.
- 1. Open your PDF in WPS Office: Launch WPS Office, select the 'PDF' tab, and open the document you wish to review.
- 2. Access the Stamp tool: Navigate to the 'Comment' tab on the top ribbon and click on the 'Stamp' icon.
- 3. Create a custom stamp: Select 'Click to Add' or choose 'Custom Stamp' from the dropdown menu to upload an image or type your custom text.
- 4. Save to gallery: Place the newly created stamp on your document. WPS PDF automatically saves your custom stamp to your personal gallery for seamless use in future sessions.

Frequently Asked Questions
Why do my Adobe Acrobat stamps disappear after closing the app?
This typically occurs because Adobe Acrobat lacks the necessary write permissions to save the updated JavaScript or PDF stamp files in your system's roaming profile directory. As a result, the application reverts to its previous state upon restarting.
Where are custom stamps saved in Adobe Acrobat on Windows?
Custom stamps in Adobe Acrobat are generally saved in the user's AppData directory under the roaming profile. The exact path is usually 'C:\Users\[Username]\AppData\Roaming\Adobe\Acrobat\[Version]\Stamps'.
Can security software prevent Acrobat from saving custom stamps?
Yes, overly restrictive antivirus, ransomware protection, or endpoint security software can block Adobe Acrobat from writing changes to the roaming profile folder, which stops new stamp data from saving permanently.
Does WPS Office support custom PDF stamps?
Yes, WPS Office includes a comprehensive PDF editor that lets users quickly add, customize, and save stamps directly to a built-in gallery without dealing with complex system folder permissions or JavaScript files.




