PDF Lock & Unlock

PDF Lock & Unlock lets you securely protect your PDF files with a password or remove the password when you need access again. Everything works fully offline — your documents never leave your device. Key Features • Lock PDFs with a password • Unlock PDFs using the correct password • Fully offline — no internet, no server • Fast and lightweight • Simple and clean interface Your privacy matters. All PDF processing happens locally on your device. Ideal for protecting sensitive documents, sharing secured PDFs, or removing passwords from your own files. No subscriptions. No tracking. Just a focused PDF utility.