robert/png-meta-editor
robert/png-meta-editor
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  • version-0 b0c968622e

    version 0 Stable

    robert released this 2026-01-05 19:09:14 +01:00 | 6 commits to main since this release

    Release Notes - PNG Metadata Editor

    Version 0.0.0 (2026-01-05)

    New Features

    • Initial release of PNG Metadata Editor
    • View all metadata fields (tEXt, zTXt, iTXt chunks) in PNG files
    • Add new metadata fields to PNG images
    • Edit existing metadata values
    • Delete unwanted metadata fields
    • Pretty-print JSON-formatted metadata values
    • Copy metadata values to clipboard
    • Visual indication of unsaved changes

    Technical Details

    • Built with Python 3.6+ and Tkinter
    • Uses Pillow library for PNG manipulation
    • Cross-platform compatible (Windows, macOS, Linux)
    • Standalone executable available via PyInstaller

    Known Issues

    • Very large metadata values may cause display issues in the detail view
    • Some special characters in metadata keys/values may not display correctly
    • On Linux, system-specific font rendering may affect UI appearance

    Installation Instructions

    1. Ensure Python 3.6+ is installed
    2. Install dependencies: pip install pillow pngmeta
    3. Run the application: python png-meta-editor.py

    Building from Source

    git clone [repository-url]
cd png-meta-editor
pyinstaller --name="PNG Metadata Editor" \
            --windowed \
            --onefile \
            --icon=AppIcon.icns \
            png-meta-editor.py
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