🔒 Metadata Scrubber Tool

A privacy-focused CLI tool that removes sensitive metadata (EXIF, GPS, author info) from image files. Perfect for protecting your privacy before sharing photos online.

✨ Features

• Multi-format support - JPEG, PNG (with PDF/Office planned)
• Concurrent processing - Process 1000+ files efficiently with ThreadPoolExecutor
• Dry-run mode - Preview what would be scrubbed without making changes
• Smart format detection - Uses Pillow's format detection, not just file extensions
• Beautiful CLI - Rich progress bars and formatted output
• Privacy-first - Removes GPS coordinates, camera info, timestamps, author data

📚 Educational Value

This project demonstrates:

• Factory pattern for extensible file type handling
• Abstract base classes for consistent handler interfaces
• Concurrent processing with thread-safe operations
• CLI development with Typer and Rich
• Image metadata handling with Pillow and piexif

📋 Prerequisites

• Python 3.10+
• uv (recommended) or pip

🚀 Installation

# Clone the repository
git clone https://github.com/Heritage-XioN/metadata-scrubber-tool.git
cd metadata-scrubber-tool

# Create virtual environment and install dependencies
uv venv
.venv\Scripts\activate  # Windows
# source .venv/bin/activate  # Linux/Mac

uv pip install -r requirements.txt

📖 Usage

Read Metadata

# Single file
python -m src.main read photo.jpg

# Recursive directory scan
python -m src.main read ./photos/ -r -ext jpg

Scrub Metadata

# Single file
python -m src.main scrub photo.jpg --output ./cleaned

# Batch process with 8 workers
python -m src.main scrub ./photos/ -r -ext jpg --output ./cleaned --workers 8

# Preview without changes
python -m src.main scrub ./photos/ -r -ext jpg --dry-run

CLI Options

Command	Options
read	-r / --recursive, -ext / --extension
scrub	-r, -ext, -o / --output, -d / --dry-run, -w / --workers
Global	-v / --verbose

🏗️ Architecture

src/
├── main.py                 # CLI entry point (Typer app)
├── commands/
│   ├── read.py            # Read metadata command
│   └── scrub.py           # Scrub metadata command (batch processing)
├── services/
│   ├── metadata_factory.py # Factory for creating handlers
│   ├── metadata_handler.py # Abstract base class
│   ├── image_handler.py    # JPEG/PNG handler
│   └── batch_processor.py  # Concurrent batch processing
├── core/
│   ├── jpeg_metadata.py    # JPEG EXIF processor (piexif)
│   └── png_metadata.py     # PNG metadata processor (PIL)
└── utils/
    ├── display.py          # Rich output formatting
    ├── formatter.py        # Value formatting helpers
    ├── exceptions.py       # Custom exceptions
    └── logger.py           # Logging configuration

Data Flow:

CLI Command → MetadataFactory → Handler (read→wipe→save) → Output
                    ↓
              Format Detection
                    ↓
           JpegProcessor / PngProcessor

⚠️ Security Considerations

• Always backup files before scrubbing in production
• Use --dry-run to preview changes before committing
• GPS coordinates are completely stripped for privacy
• Original files are not modified - processed copies are created

📄 License

MIT License - See LICENSE for details.

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Made with ❤️ for privacy