For encrypted PDFs whose password you already know: pick the file, enter the password once, and save an unlocked copy that opens without a password from then on. The original encrypted file is left untouched. AES-encrypted PDFs are supported. This is not a cracking tool — a wrong password simply fails; there is no guessing, brute force, or bypass of any kind. Use it only on files you own and know the password to.
Technical details
Publisher
YU-MING HSU
Version
1.0.4
Release date
2026-08-15
License
MIT
Installer type
portable
Architecture
x64
Package ID
YuMingHsu.PDFUnlocker
Requirements
Windows 10 or later
Install PDF Unlocker from the command line
Install with Windows Package Manager
winget install --id=YuMingHsu.PDFUnlocker -e
Update to the latest version
winget upgrade --id=YuMingHsu.PDFUnlocker -e
Uninstall
winget uninstall --id=YuMingHsu.PDFUnlocker -e
PDF Unlocker adds this command to the command line: pdfunlocker.
Yes. PDF Unlocker is free and open-source software released under the MIT license.
What is the latest version of PDF Unlocker?
The latest version is 1.0.4, released on Aug 15, 2026.
Is it safe to download PDF Unlocker?
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 0f455986273131429a86272e076c6a403ce9c993fbbc14956c464a61ad281b61.
Which Windows versions does PDF Unlocker support?
PDF Unlocker requires Windows 10 or later and is available for 64-bit (x64) systems.
How do I uninstall PDF Unlocker?
Open Settings › Apps › Installed apps, find PDF Unlocker and select Uninstall. From the command line, run winget uninstall --id=YuMingHsu.PDFUnlocker -e.
Is there a portable version of PDF Unlocker?
Yes. PDF Unlocker is available as a portable program (PDFUnlocker.exe, 64-bit (x64)) that runs without installation. Copy it to any folder or USB drive and run it from there.
Alternatives to PDF Unlocker
Other Privacy & Security programs for Windows from different developers.