Customize annotation print output: Add/modify content in WebViewer Print

karl.allanic · July 6, 2026, 3:36pm

PDFTron WebViewer 11.10.0

Please give a brief summary of your issue:
Customize annotation print output: Add/modify text (e.g., [Confidential] indicator) in WebViewer print dialog

We want to be able to customize the print output generated by WebViewer’s print functionality.
For example, the current output in the print dialog is:

Author: Admin Admin Subject: Rectangle Date: 2026-07-06T11:12:18+08:00
This is an annotation

We want to be able to insert text/content before printing. Is this possible?

Author: Admin Admin Subject: Rectangle Date: 2026-07-06T11:12:18+08:00
[Confidential]
This is an annotation

Print button

Print Settings

Print Dialog

Please provide a link to a minimal sample where the issue is reproducible:
N/A

kkim · July 6, 2026, 6:50pm

Hi there,

We do not have an API to customize the text in the print dialogue for the annotation summary.

You can however customize the date format via thesetPrintedNoteDateFormat API:

For inserting or modifying the text (such as adding a [Confidential] indicator) in the print dialog or in the printed annotation notes, you will need to customize this in the notes panel before printing:

Best regards,

Kevin