🖼️ ImgDPIChanger

一个轻量级的批量图片 DPI 修改工具 🚀

English | 简体中文

✨ Features

• 🎯 Batch Processing - Modify DPI for multiple images at once
• 🖱️ Drag & Drop - Simply drag images into the window
• 📁 Folder Support - Add entire folders of images
• 🌍 Multi-language - English and Chinese (中文) support
• 🎨 Modern UI - Clean and intuitive interface built with React
• ⚡ Fast & Lightweight - Built with Tauri and Rust for optimal performance
• 🔧 Flexible Options - Rename patterns, output folders, and more
• 📝 Logging - Optional CSV logging for batch operations
• 🕐 Timestamp Control - Optionally modify file timestamps
• 💾 Backup Support - Create backups before modifying files

🎯 Supported Formats

• ✅ JPEG / JPG
• ✅ PNG
• ✅ BMP
• ✅ GIF
• ✅ TIFF / TIF

🚀 Quick Start

Download

Download the latest release from the Releases page.

Build from Source

Prerequisites

• Node.js (v18 or higher)
• Rust (latest stable)
• Tauri CLI

Steps

# Clone the repository
git clone https://github.com/Amoswuuuu/ImgDPIChanger.git
cd ImgDPIChanger/tauri-app

# Install dependencies
npm install

# Run in development mode
npm run tauri dev

# Build for production
npm run tauri build

📖 Usage

Basic Workflow

1. Add Images

   • Click "Add Files" button to select images
   • Click "Add Folder" button to add all images from a folder
   • Or simply drag & drop images into the window

2. Configure Settings

   • Set target DPI (default: 300)
   • Choose output options (overwrite or new folder)
   • Configure file naming patterns
   • Optionally set file timestamps

3. Process

   • Click "Start Processing" button
   • Watch the progress in real-time
   • Check the status column for results

Advanced Options

DPI Settings

• Target DPI: Set the desired DPI value (72, 96, 150, 300, 600, etc.)
• Enable DPI Change: Toggle to enable/disable DPI modification

Output Settings

• Output to Folder: Save modified images to a separate folder
• Overwrite Original: Replace original files (use with caution!)
• Create Backup: Create .bak backup files before overwriting

File Naming

• Prefix: Add text before filename
• Suffix: Add text after filename (default: _changed)
• Pattern: Use {filename}, {prefix}, {suffix} placeholders

Timestamp Settings

• Creation Time: Set file creation timestamp
• Modification Time: Set file modification timestamp
• Access Time: Set file access timestamp

🛠️ Technology Stack

• Frontend: React 19 + TypeScript + Tailwind CSS
• Backend: Rust + Tauri 2.0
• State Management: Zustand
• Internationalization: i18next
• Image Processing: Rust image crate + img-parts

🌟 Why Tauri?

Compared to the original WPF version:

Feature	WPF Version	Tauri Version
Platform	Windows only	Windows, macOS, Linux
Size	~15 MB	~8 MB
Startup	~1.5s	~0.5s
Memory	~80 MB	~40 MB
UI Framework	XAML	React + Tailwind
Customization	Limited	Highly flexible

🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m 'Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

📝 License

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

🙏 Acknowledgments

• Tauri - Build smaller, faster, and more secure desktop applications
• React - A JavaScript library for building user interfaces
• Rust - A language empowering everyone to build reliable and efficient software
• image-rs - Image processing library for Rust

📧 Contact

• GitHub: @Amoswuuuu
• Email: amoswu@88.com

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Made with ❤️ by Amos

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