ImageCompressor – Advanced Image Compression Tool

(by Jakub Ešpandr)

Overview

ImageCompressor is a powerful GUI application for compressing JPG, PNG, and other image formats with advanced resampling and optimization techniques. It features quality controls, smart resizing, multiple resampling algorithms, and a modern interface. Perfect for photographers, web developers, and anyone who needs to reduce image file sizes while maintaining quality.

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✨ Features

• Multi-Format Support
  • Input: JPG, JPEG, PNG, BMP, TIFF, WebP
  • Output: JPEG, PNG, WebP (with auto-detection)
  • Batch processing of multiple files or entire folders
• Advanced Compression Settings
  • Adjustable quality slider (1–100)
  • Smart resizing with maximum width/height limits
  • 6 resampling methods: LANCZOS, BICUBIC, BILINEAR, NEAREST, BOX, HAMMING
• Optimization Features
  • Progressive JPEG for better web loading
  • Optimize flag for enhanced compression
  • EXIF data preservation
  • Format conversion for better compression
• Real-time Preview & Analysis
  • Live image preview before compression
  • File size estimation and compression ratio prediction
  • Detailed image properties display
  • Progress tracking with real-time updates
• Modern UI
  • Custom fonts and icons
  • Two-column layout for efficient space usage
  • Settings persistence and management

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📦 Requirements

• Python 3.7+
• Pillow – Image processing library
• Tkinter (usually included with Python)
• Custom fonts (included in assets/fonts/)

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🚀 Installation

git clone https://github.com/Jakub-Espandr/ImageCompressor.git
cd ImageCompressor

Create a virtual environment (optional but recommended):

python -m venv venv
source venv/bin/activate    # On Windows: venv\Scripts\activate

Install required Python libraries:

pip install -r requirements.txt

Run the application:

python main.py

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🛠️ Usage

1. Add Images: Click "Add Files" to select individual images or "Add Folder" to process entire directories.
2. Choose Output Directory: Select where compressed files will be saved.
3. Configure Settings: Adjust quality, size limits, resampling method, and format options.
4. Preview: Select files to see preview and estimated compression results.
5. Compress: Click "Compress Images" to start processing.
6. Monitor Progress: Watch the progress bar and log for real-time updates.

Compression Strategies

For Maximum Compression:

• Set quality to 60-70
• Use aggressive size limits (e.g., 800x600)
• Enable "Optimize"
• Convert to JPEG for photos, WebP for web

For Best Quality:

• Set quality to 90-95
• Use large size limits (e.g., 3840x2160)
• Use LANCZOS resampling
• Keep original format or use PNG

For Web Optimization:

• Set quality to 80-85
• Use moderate size limits (e.g., 1920x1080)
• Enable "Progressive JPEG"
• Convert to WebP when possible

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📁 Project Structure

ImageCompressor/
├── main.py                  # Entry point
├── assets/
│   ├── icons/              # Application icons (icon.png, icon.ico, icon.icns)
│   └── fonts/              # Custom fonts (fccTYPO-Regular.ttf, fccTYPO-Bold.ttf)
├── requirements.txt        # Dependencies
└── README.md               # This file

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🔐 License

This project is licensed under the Non-Commercial Public License (NCPL v1.0)
© 2025 Jakub Ešpandr - Born4FLight, FlyCamCzech

See the LICENSE file for full terms.

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🙏 Acknowledgments

• Built with ❤️ using Tkinter, Pillow, and open-source libraries