Protect / Unlock PDF.

Add or remove a PDF password privately in your browser — free and instant.

Protect / Unlock PDF

Add or remove a PDF password privately in your browser.

How it works

Four steps.

  1. 01

    Upload your PDF file.

  2. 02

    Choose Protect or Unlock mode.

  3. 03

    Enter the password (and confirm when protecting).

  4. 04

    Download the resulting PDF.

Features

Why use Protect / Unlock PDF.

Quick password security for PDFs without uploading files to a server.

  • Password Protect PDF

    Add a user password so the PDF requires credentials to open.

  • Unlock PDF

    Remove password protection when you know the correct password.

  • AES-256 Encryption

    Uses modern AES-256 PDF encryption for protect mode.

  • Private in Browser

    Your PDF and password never leave your device.

  • Fast & Free

    Protect or unlock PDFs instantly with no signup.

  • Instant Download

    Download the secured or unlocked PDF immediately.

FAQ

Questions.

Can't find an answer? Send us your question.

Is my PDF uploaded to a server?

No. Encryption and decryption run entirely in your browser.

What encryption is used for Protect?

Protect mode uses AES-256 PDF encryption with a user password required to open the file.

Can I unlock any password-protected PDF?

Unlock works when you know the correct password and the PDF uses a compatible encryption scheme (including files protected with this tool). Wrong passwords are rejected.

What if I forgot the password?

This tool cannot recover lost passwords. You’ll need the original password from whoever protected the file.

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