Why Adobe Acrobat Stamps Are Not Available Online
Question details
The user is unable to use custom corporate JavaScript stamps for reviewing and approving documents in Adobe Acrobat online.

- Product
- Adobe Acrobat Online
- Device & OS
- not provided
- Scenario
- Reviewing and approving PDF documents using custom corporate stamps in a web browser.
- Observed behavior
- The stamp feature is missing or unsupported in the online web interface.
Ensure you have downloaded the PDF document to your local storage, as advanced interactive features like custom stamps require desktop software.
Apply Stamps Using a Desktop PDF Application
Since the online application lacks stamp support, you must use a desktop PDF reader or editor to insert corporate stamps.
Online PDF editors often restrict complex scripts like JavaScript due to browser security limitations. To use dynamic or custom corporate stamps, transitioning to a desktop environment is required.
Save the PDF document from your online workspace or email directly to your local computer drive.
Launch the Adobe Acrobat desktop app (or a compatible desktop PDF editor) and open the downloaded document.
Navigate to the 'Tools' or 'Comment' section, select the 'Stamp' feature, and apply your custom corporate JavaScript stamp to the page.

Easily Add Custom Stamps to PDFs with WPS Office
Since online PDF editors often lack advanced stamping capabilities, WPS Office provides a robust, lightweight desktop alternative. You can easily review, approve, and insert custom stamps into your PDF documents locally without browser limitations.
- 1. Open your PDF document: Launch WPS Office on your desktop and open the downloaded PDF file.
- 2. Access the Comment tab: Navigate to the 'Comment' tab located on the top ribbon of the WPS PDF interface.
- 3. Select the Stamp tool: Click on the 'Stamp' icon to view a list of predefined stamps or click 'Click to Add' to create a custom stamp.
- 4. Apply to the document: Click anywhere on the PDF page to place your stamp for final review and approval.

Frequently Asked Questions
Can I use JavaScript-based dynamic stamps in web browsers?
Most online PDF editors, including Adobe Acrobat online, do not support JavaScript dynamic stamps due to strict web browser security policies. You must use a desktop application for these advanced features.
Will stamps applied in a desktop app show up in online viewers?
Yes. Once a stamp is applied and the document is saved using a desktop application, the stamp is flattened or saved into the PDF layer and will be visible to users viewing the document online.
Are custom stamps supported in WPS Office?
Yes, WPS Office supports applying predefined stamps as well as allowing you to import your own custom image stamps for document approval and review.




