Creation of a custom dynamic stamp with Identifier

Hi @Mystical_passion8499,

Thanks for reaching out and for sharing your use case with the community!

Creating a custom dynamic stamp that pulls the Name (Identifier) from the user’s Identity preferences, along with the current date and the file name, is a powerful but slightly nuanced task in Acrobat due to JavaScript security restrictions and session persistence. Here’s how you can approach this:

Your Goal:

Create a dynamic stamp with three fields:

1. Name and Identifier from Edit > Preferences > Identity

2. Current Date

3. File Name of the PDF being stamped

Step-by-Step Solution:

1. Create the Base Stamp File

• Open Acrobat or any PDF editor.

• Add form fields named:

  • userInfoField

  • dateField

  • fileNameField

   

• Save the file as a single-page PDF.

2. Add this JavaScript in the Stamp Field (custom calculation script):

You’ll need to add the following code inside the form fields (you can use a custom calculation script in each):

For userInfoField:

try {

    var identityName = https://adobe.ly/3GtLxe3;

    var identityLogin = identity.loginName;

    if (!identityLogin) identityLogin = "NoID";

    event.value = identityName + " (" + identityLogin + ")";

} catch (e) {

    event.value = "Unknown User";

}

For dateField :

event.value = util.printd("dd-mmm-yyyy", new Date());

For fileNameField:

try {

    event.value = this.documentFileName;

} catch (e) {

    event.value = "Unknown File";

}

Important Notes:

• If you see messages like “not allowed due to security settings”, it’s due to Acrobat’s sandboxing of dynamic stamp scripts, especially when trying to access privileged objects like identity.

• To make this work:

  • Use the app.getIdentityString() method only inside a dynamic stamp context.

  • Ensure your script is placed directly inside the dynamic stamp’s calculation script, not in a global or document-level script.

   

Working Stamp JavaScript (All in One Field - Optional Approach):

If you prefer one single text field for all values:

try {

    var name = https://adobe.ly/3GtLxe3 || "Unknown";

    var id = identity.loginName || "NoID";

    var date = util.printd("dd-mmm-yyyy", new Date());

    var fileName = this.documentFileName || "NoFile";

    event.value = name + " (" + id + ")\n" + date + "\n" + fileName;

} catch (e) {

    event.value = "Stamp Error: " + e.toString();

}

Deployment :

• Once you save your dynamic stamp PDF, place it in the user’s stamp folder:

  • C:\Users\<username>\AppData\Roaming\Adobe\Acrobat\<version>\Stamps\

   

• Acrobat will auto-load any valid stamp PDFs from this folder on the next launch.

Some Notes:

• Ensure Acrobat is restarted after copying stamp files.

• If the identity fields are blank, users may need to set their Identity under:

  • Edit > Preferences > Identity

   

• This stamp can work across multiple sessions as long as users have Acrobat (not Reader in strict mode), and permissions allow access to Identity info.

Wait for more inputs form the experts.

~Tariq