How to Add Page Numbers to Password-Protected PDF

Published on: June 9, 2026 | Category: Office Security

Secured bank statements, business audits, and legal contracts are often encrypted with passwords. When you attempt to paginate or format these secured files, standard online tools will lock up, fail, or demand you to upload your passwords, posing massive risk.

Step-by-Step Guide to Add Page Numbers to Secured PDFs Securely Offline

Password-protected PDFs add an extra layer of complexity to page numbering. Many free tools simply refuse to open encrypted files, forcing you to remove protection first — a security risk for confidential documents. This guide shows how to add page numbers directly to protected PDFs while keeping encryption intact.

Follow these 3 simple steps to complete your task in seconds:

1. Open PDF Agile Securely: Launch PDF Agile and import the encrypted PDF.
2. Authorize Locally: Enter the password when prompted. The decryption is processed strictly on your local CPU memory, ensuring zero password transmission.
3. Format Page Numbers: Go to the Add Page Numbers tab, apply your preferred format, and save the paginated file offline.

Pro Tip: After adding page numbers, you can easily re-encrypt the file with the original encryption level or customized passwords using PDF Agile's offline security tools.