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Protect PDFUnlock PDF

Protect PDF online — free

Protect a PDF with a password online for free. Add 256-bit encryption so the file asks for a password before it opens — and it's done entirely in your browser, so the PDF is never uploaded.

Processed in your browser — never uploaded

How to protect pdf

  1. 1Choose your PDF file.
  2. 2Set a password (and confirm it).
  3. 3Click Protect and download your password-protected PDF.

Frequently asked questions

How do I password-protect a PDF?+

Upload your PDF, choose a password (and confirm it), then click Protect. The downloaded PDF requires that password to open.

Can you recover my password if I forget it?+

No — the encryption happens on your device and we never see your file or password, so keep your password somewhere safe.

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