PaperKey

PaperKey is a simple and secure PDF utility for iPhone and iPad. Add a password to any PDF before sharing it, or remove protection from documents you already have the password for. Everything happens entirely on-device, ensuring your sensitive files never leave your control. - Shortcuts & Automation: Use the "Lock PDF" and "Unlock PDF" actions to build powerful, automated workflows in the Shortcuts app. - Secure Locking: Add industry-standard password protection to any PDF. - Easy Unlocking: Quickly remove passwords from protected files. - Deep Integration: Open files directly from the Files app, the Share Sheet, or use Drag and Drop on iPad. - Privacy by Design: No accounts, no tracking, and no cloud uploads. Your data stays yours. - Quick Access: Keep track of your work with a list of recent files. - Native Experience: Fully supports Light and Dark modes. PaperKey is built for those who need a focused, private tool for PDF security—without the bloat.