PDF — Free

Password protect a PDF

Encrypt with AES-256 and optional print/copy restrictions.

Drop a file to begin. Free

Drop files herePDF · any size · up to 500 at once

01 — Steps

How to password protect a PDF

Add your PDF
Drop the document you want to protect.
Set a password
Choose the open password; optionally disallow printing or copying.
Download
Your encrypted PDF is ready. Keep the password safe.

02 — Questions

What encryption is used?

256-bit AES (PDF 1.7 / ISO 32000-2), the strongest level supported by standard PDF readers.

Can I recover the password later?

No. Nothing is stored. If you forget it, the file cannot be opened.

Do restrictions actually stop copying?

Well-behaved readers honour them, but anyone with the open password can strip them. Use them as a hint, not as security.

04 — Recipes

05 — More