Protect or Unlock PDF

Add password protection to PDF files or remove encryption online. Free, private browser processing with no software download required.

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How to use Protect or Unlock PDF

1
Upload the PDF document you want to secure or unlock.
2
Enter a strong encryption password to protect it, or enter the current password to remove encryption.
3
Download the secured or decrypted PDF file to your device.

Protect confidential PDF contracts and bank statements with industry-standard password protection.

Permanently remove password restrictions from documents when you have the authorized password.

Encryption and decryption keys are handled entirely in your browser memory and never sent over the network.

Can I unlock a PDF if I forgot the password?

No. Due to strong cryptographic standards, you must know the current password to decrypt and remove protection from a PDF.

Which PDF readers can open protected files?

All standard PDF readers including Adobe Acrobat, Apple Preview, Google Chrome, and Microsoft Edge support password-protected PDFs.

Is there a limit on file size for encrypting PDFs?

No artificial limit is imposed by our servers since encryption executes directly in your browser.

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