📸 Watermark App (Tkinter + Pillow)

A simple and powerful desktop watermarking application built with Python, Tkinter, and Pillow. This app allows users to upload an image, apply a fully customizable text watermark, and save the final watermarked image.

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✨ Features

• Add customizable text watermarks to any image
• Choose from multiple fonts, colors, and text sizes
• Adjust watermark transparency, position, and alignment
• Automatically detects and displays image dimensions
• Supports common image formats: PNG, JPG, JPEG, BMP, GIF
• Preview watermark directly inside the app
• Save the final watermarked image to your computer
• Lightweight, offline, cross-platform (Windows / Mac)

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📸 Screenshot

(/Demo/watermark_app_demo.jpg)

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🛠️ Installation

1. Clone the repository

git clone https://github.com/olatideenoch/watermark_app.git
cd watermark_app

Install dependencies

pip install pillow

Run the application

python main.py

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🖥️ Cross-Platform Font Support

The project includes Windows font paths by default. For macOS users, a commented-out macOS font map is included inside save_img() they can simply uncomment it.

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📝 Known Limitations

• Watermark preview may not match exact pixel scaling (due to canvas resizing)
• Rotated text might shift slightly depending on font metrics
• Font availability depends on the OS
• Transparency works in the saved image, but not in the canvas preview due to Tkinter’s lack of transparency support.

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🤝 Contributions

Pull requests are welcome!

• Submit Pull Requests(PRs)
• Report issues
• Suggest new features

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📄 Licensing

The project is open-source under the MIT License

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⭐ A Note from the Creator

This Watermark App was built to combine simplicity with professional-level watermarking features — clean, intuitive, and effective.

If you use it or improve it, consider giving the project a ⭐ on GitHub!