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Password Protect PDF

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Encrypt a PDF with a password so it can't be opened without it. Encryption happens in your browser — your document and password never leave your device.

Drag & drop PDF file here

or click to choose a file

PDF · processed in your browser, never uploaded

How to password protect pdf

  1. 1Select your PDF.
  2. 2Type a password (at least 4 characters).
  3. 3Click Password Protect — the encrypted PDF downloads instantly.

Frequently asked questions

Where is my password sent?+

Nowhere. Encryption runs in your browser; the password never leaves your device. If you lose it, the file can't be recovered.

What encryption is used?+

Standard PDF password encryption, so any PDF reader will prompt for the password.

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