Protect PDF

Encrypt a PDF with a password.

Drop a PDF to protect

or click to browse — PDF

Secure processing • Your files stay private

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How to use Protect PDF

Add a password to a PDF so it cannot be opened without it. Sensible before emailing anything confidential.

  1. 1Upload the PDF.
  2. 2Choose a strong password.
  3. 3Protect the file and download it.

Common questions

What happens if I forget the password?

We cannot recover it. The password is applied to your file and never stored by us, so keep your own record of it.

What encryption is used?

Standard PDF encryption, which is supported by all common PDF readers.

Are my files uploaded anywhere?

This tool runs entirely inside your browser. Your file is never uploaded to a server, so nothing leaves your device.