Forgot the password to a locked PDF? Gallium finds it fast — no cloud, no subscription, no nonsense.
Just drag, drop, and unlock.
Recovers most PDF passwords in minutes or hours, not weeks.
Your files never leave your Mac. Everything runs locally — no uploads, no accounts, no data collection.
Drop a PDF onto the app window. Gallium handles the rest and shows you the password when found.
Gallium uses your Mac's GPU and all of the CPU cores to test passwords, making it the faster password recovery app.
Gallium is designed to work in the background - keep working on your Mac while Gallium runs.
Built with SwiftUI. Feels right at home on macOS — supports Dark Mode, Retina displays, and Apple Silicon.
Drag your locked PDF file into the app window.
Gallium searches and displays your password the moment it's found. Copy it with one click and open your file.
Yes — Gallium is intended for recovering passwords to your own files. Always ensure you have the right to access any PDF you unlock.
Gallium focuses on recovering the open password (the one required to view the file). Owner restriction passwords may also be removed depending on the encryption level.
It depends on password length and complexity. Simple three character passwords are found in seconds; complex ones may take longer, up to a few days.
Absolutely. Gallium is 100% offline. Your PDF never leaves your Mac — there are no servers, no analytics, no cloud uploads of any kind.
Gallium requires macOS 26.5 or later. It runs natively on Apple Silicon Macs.
Download Gallium for free and recover your password in minutes.
Download for Mac — Free