From bc2755730e12a3596f15c6ce1a115469ddafa352 Mon Sep 17 00:00:00 2001
From: robert <robert@noreply.git.tusa.at>
Date: Mon, 5 Jan 2026 18:57:26 +0100
Subject: [PATCH] Update README.md

---
 README.md | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 67 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 84a57bd..037e0d8 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,68 @@
-# png-meta-editor
+# PNG Metadata Editor
 
+A graphical tool for viewing and editing metadata in PNG files.
+
+![PNG Metadata Editor Screenshot](screenshot.png)
+
+## Features
+
+- View all metadata fields (tEXt, zTXt, iTXt chunks) in PNG files
+- Add, edit, and delete metadata fields
+- Pretty-print JSON-formatted values
+- Copy metadata values to clipboard
+- Visual indication of unsaved changes
+
+## Installation
+
+### Prerequisites
+
+- Python 3.6+
+- Tkinter (usually included with Python)
+
+### Dependencies
+
+Install required packages using pip:
+
+```bash
+pip install pillow pngmeta
+```
+
+## Usage
+
+1. Run the application:
+   ```bash
+   python png-meta-editor.py
+   ```
+
+2. Open a PNG file using the "Open PNG File" button
+
+3. View metadata in the tree view on the left
+4. Select a field to see its full value in the detail pane
+5. Use the buttons to add, edit, or delete fields
+
+## Building for Distribution
+
+To create a standalone executable:
+
+```bash
+pyinstaller --name="PNG Metadata Editor" \
+            --windowed \
+            --onefile \
+            --icon=AppIcon.icns \
+            png-meta-editor.py
+```
+
+The resulting executable will be in the `dist/` directory.
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
+
+## Author
+
+Robert Tusa
+[Your Contact Information]
+
+## Version History
+
+- 2023-10-01: Initial release
\ No newline at end of file