Unlock PDF

How it works

Drop a password-protected PDF and enter its password — the same one you'd type into Adobe Reader, Preview, or any other PDF viewer. This tool then removes that protection entirely inside your browser tab, using a WebAssembly build of qpdf, a well-established open-source PDF library. Nothing is uploaded; the password never leaves your device.

Once unlocked, the resulting PDF opens without a password prompt in any reader. This is useful when you've received a protected file from a bank, an employer, or a scanner that always encrypts its output, and you want to attach or archive it somewhere that doesn't support entering a password every time.

Limitations

This tool removes protection from a PDF you can already open — it does not recover, crack, or guess a forgotten password. If you enter the wrong password, you'll get a clear error and can try again with the same file, no need to re-upload. There's no file size limit; the only real ceiling is your browser's available memory.

FAQ

Is this PDF unlocker really free?

Yes — completely free, with no file size limits, and no account required. Everything runs in your browser, so there's no server cost to recoup.

Do I need to know the password?

Yes. This tool removes password protection from a PDF you can already open — enter the same password you'd type into any PDF reader. It cannot crack, guess, or bypass a password you don't know.

Is my password or file ever sent anywhere?

No. The PDF and the password you enter are processed entirely on your device using a WebAssembly build of qpdf — nothing is uploaded, and nothing ever leaves your browser tab.

What if I enter the wrong password?

You'll get a clear "incorrect password" message and can try again — your file stays loaded, so you don't need to re-select it between attempts.