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Unlock Password-Protected PDF Files

Unlock PDF files using your known password directly in your browser. Decrypt and save an unencrypted copy locally so you don't have to re-enter it.

Unlock PDF removes restrictions using your known password. We cannot remove or crack unknown passwords.

Up to 50 MB per file (10 files per batch) on the Free plan. You can also paste a file from your clipboard.

About Unlock PDF & Edge Cases

Remove password prompts from an encrypted PDF you own so you can save an unlocked copy and open or print it without typing the password every time. Unlock PDF executes QPDF WebAssembly (--decrypt --password=...) locally inside your browser's Web Worker.

  • Requires you to know the password so you can save an unlocked copy and not have to type it again. Does not crack unknown passwords.

How Unlock PDF Works

  1. 1

    Step 1

    Drop your password-protected PDF into the Unlock PDF workbench.

  2. 2

    Step 2

    Enter the document's current password in the password field.

  3. 3

    Step 3

    Click Unlock PDF to decrypt the file via QPDF WebAssembly and download an unencrypted copy.

Plan Limits for Unlock PDF

Rendered directly from our active plan configuration. No hidden caps before your first download.

Compare Plans
LimitFree ($0)Day Pass ($4.99) / Pro ($4.00 / month)
Maximum file size50 MB500 MB
Maximum files per batch10 files200 files
Processing locationOn your deviceOn your device

Frequently Asked Questions

Can Unlock PDF bypass a password I do not know?
No. Unlock PDF requires you to know the password so you can save an unlocked copy and not have to type it again. It does not crack unknown passwords.
Does Unlock PDF upload my files to a server?
No. Unlock PDF is a local browser tool. Your file bytes stay on your device, and you can verify zero file uploads in your browser Network tab.
What are the file size and batch limits for Unlock PDF?
On the Free plan, you can queue up to 10 files per batch and up to 50 MB per file. The 24-Hour Day Pass and Pro plans support up to 200 files per batch and 500 MB per file.