How to Automatically Number Document Regions with Acrobat Dynamic Stamps
Question details
The user needs a method to mark specific areas of a PDF document with automatically incrementing sequential numbers using dynamic stamps.

- Product
- Adobe Acrobat
- Device & OS
- not provided
- Scenario
- Reviewing, annotating, or organizing a PDF document where multiple items, exhibits, or regions require clear sequential numbering.
- Observed behavior
- The user is looking to apply a stamp annotation that automatically updates its displayed number (e.g., 1, 2, 3) each time it is placed on the page.
Ensure you have the full version of Adobe Acrobat installed, as the free Adobe Reader has limited capabilities for creating and executing custom dynamic stamp scripts.
Use the Built-in Exhibit Dynamic Stamp
Apply Acrobat's specialized Exhibit stamp, which is designed to automatically increment its number with each use.
Adobe Acrobat supports dynamic stamps that use underlying JavaScript to pull in system data or calculate values. The Exhibit stamp is specifically programmed to increase its numbering sequence every time you apply it to a page.
Launch Adobe Acrobat and open your PDF document. Navigate to the 'Tools' menu and select 'Stamp' to reveal the stamping toolbar.
Click the 'Stamp' icon on the toolbar and browse the categories. Look for the 'Dynamic' category or a specific 'Exhibit' category, then select the Exhibit stamp.
Click on the specific region of the document where you want the first number to appear. The stamp will place a '1'. Repeat this action on other areas to automatically place a '2', '3', and so on.

Create Custom Numbering Formats with Acrobat JavaScript
For specialized numbering formats, such as letters or custom prefixes, you can design your own dynamic stamp using JavaScript.
Annotate and Number PDF Regions Easily with WPS Office
While automated JavaScript stamps require complex setup, WPS Office provides an intuitive, comprehensive PDF editor that lets you easily manually mark up, number, and annotate specific document regions with customizable tools.
- 1. Open the PDF in WPS Office: Launch WPS Office and open the PDF document you need to annotate.
- 2. Access Annotation Tools: Navigate to the 'Comment' tab located on the top ribbon to view available markup tools.
- 3. Select the Text Box Tool: Click on 'Text Box' or 'Text Comment' from the toolbar.
- 4. Place and Number the Region: Click exactly where you need the marker on the document and type your sequence number (1, 2, 3).
- 5. Format for Visibility: Adjust the font size, text color, and border to make the number stand out clearly, serving the exact same visual purpose as a stamp.

Frequently Asked Questions
Why doesn't my Acrobat dynamic stamp increment automatically?
Automatic incrementing relies on a JavaScript calculation embedded within the stamp's form field. If the number remains the same, you might be using a flattened static stamp instead of a dynamic one, or the underlying script may have errors.
How do I reset the numbering sequence of a dynamic stamp back to 1?
Because dynamic stamps typically use global application variables to track the current number, closing Adobe Acrobat completely and reopening the document will usually reset the counter back to 1.
Will other users see the dynamic stamps when they open the PDF?
Yes. Once a dynamic stamp is applied to a page, its current visual state is flattened into a standard PDF annotation. Anyone opening the file in a standard viewer, such as WPS PDF or Adobe Reader, will see the numbers exactly as you placed them.
Can I use letters instead of numbers for sequential stamps?
Yes, but this is not supported out-of-the-box. You will need to create a custom dynamic stamp and write a specific JavaScript code that iterates through the alphabet (A, B, C) instead of numeric integers.




