🔓 PDF Password Unlocker

A high-performance, multi-threaded PDF password recovery tool built with Rust and Native Windows GUI.

✨ Features

• Multi-threaded Cracking: Utilizes all available CPU cores for maximum speed.
• Pattern Matching: Target specific password formats using a flexible pattern guide.
• Cross-Platform: Runs on Windows (GUI/CLI), macOS (CLI/TUI), and Linux (CLI/TUI).
• User-friendly Interface: Native GUI for Windows and rich Terminal UI for other platforms.

🚀 How to Use

1. Select PDF: Click 'BROWSE' to select the password-protected PDF file.
2. Set Threads: Enter the number of threads (Recommended: 50-200 for modern CPUs).
3. Enter Pattern: Provide the password pattern based on the guide below.
4. Start: Click 'START CRACKING' to begin the process.

🔑 Pattern Guide

The tool uses special characters to represent unknown parts of a password:

• n = Numeric (0-9)
• c = Alphabetic (a-z, A-Z)
• a = Alphanumeric (0-9, a-z, A-Z)
• x = Any printable character

Example:

If you know the password starts with 1234, ends with 5678, and has 6 digits in between: Pattern: 1234nnnnnn5678

🛠️ Build Requirements

• Rust (latest stable)
• MSVC Build Tools (for Windows GUI)

cargo build --release

The executable will be located in target/release/pdf_unlocker.exe.

🍎 Running on macOS & Linux

If you downloaded the binary from GitHub Releases:

1. Open Terminal.
2. Navigate to the download folder:

   cd ~/Downloads

3. Make it executable (Required):

   chmod +x pdf_unlocker

4. Run it:

   ./pdf_unlocker

   Note: On macOS, if you see a security warning, Go to System Settings > Privacy & Security and click "Open Anyway".

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.