If you keep getting asked for a password every time you open a document you own the rights to, you can strip that password out permanently with PDF42 — so every future open is one tap, not a password prompt.
Unlock a PDF in 4 steps
- Open UnlockIn PDF42, open Tools and tap Unlock.
- Pick the PDFChoose the password-protected file.
- Enter the passwordType the PDF's current password to confirm it's yours to unlock.
- Save the unlocked fileSave or share a copy with the password removed.
Unlocking here means removing a password you already know — not bypassing or cracking one on a document that isn't yours. PDF42 does this on your device, so the file and its password never leave your phone or pass through a server.
Do I need to know the password?
Yes. This removes a password you already have — for example, a PDF you password-protected yourself, or one you were given the password to. It won't open a file if you don't know its password.
Is my password sent anywhere?
No. Since unlocking happens entirely on your device, your password is only ever typed into your own phone — it's never uploaded, logged, or transmitted anywhere.