How to password-protect a PDF

  1. Open the PDF (or several files to combine first).
  2. Type a password under Password-protect.
  3. Press Export PDF. Anyone opening it will need the password.

Questions

How strong is the protection?

The PDF is encrypted with AES-256, the strongest standard PDF encryption. Use a long password: that matters most.

What if I forget the password?

We never see it, so we can't recover it. Keep a copy of the original file.

Is my PDF uploaded?

No. Encryption happens in your browser.

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