Forgot the password to a locked PDF? Gallium finds it fast — no cloud, no subscription, no nonsense.
Just drag, drop, and unlock.
Uses optimized multicore+CPU brute-force to recover 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. That's it. Gallium handles the rest and shows you the password when found.
Have multiple locked PDFs? Process them all at once. Gallium queues them up and works through each one.
Remember part of the password? Enter a hint to massively narrow the search and get results faster.
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 passwords are found in seconds; complex ones may take longer. Using a password hint dramatically speeds things up.
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 13 Ventura or later. It runs natively on both Intel and Apple Silicon Macs.
Download Gallium for free and recover your password in minutes.
Download for Mac — Free