PDF Locker Live

Keep sensitive PDFs private with simple, on-device password protection. PDF Locker lets you choose a PDF, create a password, and save an encrypted copy in a private vault on your Android device. Your PDF contents and passwords are not uploaded by PDF Locker. Key features: • Protect PDFs with AES-256 encryption • Process documents locally on your device • Keep protected copies together in a private vault • Open, share, or save a protected copy whenever you need it • Prevent editing and text extraction from protected copies • Choose your own password with confirmation to avoid typing mistakes • No account or sign-in required How it works: 1. Tap “Lock a PDF” and choose a document. 2. Enter and confirm a password of at least 8 characters. 3. PDF Locker creates an encrypted copy and adds it to your vault. 4. Share it or save a copy to a location you choose. Your original PDF is left unchanged. Passwords are never stored, so keep yours somewhere safe. Files already protected by a password must be unlocked before PDF Locker can protect them again.