📄 PDF Editor Pro v3.0 — Modern Edition

Full-featured PDF editor with modern dark UI, layer system, command-based undo/redo, and 10-language support.

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✨ Features

🖊️ Text Editing

• Click any text to edit it directly
• Font selection with Arabic / Russian / CJK support
• Font size, color picker
• RTL (Right-to-Left) layout for Arabic

🎨 Drawing & Annotation

• Rectangle, Circle, Line, Arrow
• Freehand drawing
• Highlight, Underline, Strikeout

🖼️ Image Operations

• Insert images anywhere
• Select, move, resize, scale, rotate images
• Replace or extract images
• Right-click context menu for images

📑 Page Management

• Add, delete, rotate pages
• Extract specific pages to new PDF
• Merge multiple PDFs
• Thumbnail panel with click-to-navigate

🏗️ Architecture

Feature	Details
Layer System	Every edit is a separate layer — selectable and deletable
Command-based Undo/Redo	Full history with 50 states
LRU Page Cache	Smart caching with lazy loading for fast rendering
Auto-save	Background auto-save protection
Memory Monitor	Live cache/memory statistics in status bar

🌍 10 UI Languages

English · Arabic (RTL) · Russian · Chinese · Spanish · French · German · Japanese · Korean · Portuguese

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🖥️ Screenshots

Coming soon

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🚀 Quick Start

1. Clone

git clone https://github.com/Hayder-IRAQ/pdf-editor-pro.git
cd pdf-editor-pro

2. Virtual environment (recommended)

python -m venv venv

# Windows
venv\Scripts\activate

# Linux / macOS
source venv/bin/activate

3. Install dependencies

pip install -r requirements.txt

4. Run

python main.py

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📦 Dependencies

Package	Purpose
PyMuPDF	PDF rendering and editing engine
Pillow	Image processing for page display
tkinter	GUI framework (built into Python)

pip install PyMuPDF Pillow

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🗂️ Project Structure

pdf-editor-pro/
├── main.py              # Application entry point & UI
├── requirements.txt
├── LICENSE
├── README.md
└── core/
    ├── pdf_engine.py    # Core PDF operations (open, save, edit, render)
    ├── text_editor.py   # Advanced text analysis and editing
    ├── undo_manager.py  # Command-based undo/redo system
    ├── cache_system.py  # LRU page cache + auto-save manager
    ├── layer_system.py  # Layer management (shapes, annotations, text)
    ├── tools.py         # Tool enums, constants, default colors
    ├── fonts.py         # Font management (Latin, Arabic, Russian, CJK)
    ├── languages.py     # i18n strings for 10 languages
    └── image_block.py   # Image block dataclass

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⌨️ Keyboard Shortcuts

Shortcut	Action
Ctrl+O	Open PDF
Ctrl+S	Save
Ctrl+Z	Undo
Ctrl+Y	Redo
Ctrl+H	Find & Replace
Ctrl++	Zoom In
Ctrl+-	Zoom Out
Ctrl+0	Reset Zoom
Page Up	Previous Page
Page Down	Next Page
Home	First Page
End	Last Page
Delete	Delete Selection
Double-click	Edit text / select image
Right-click	Context menu

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🏗️ Architecture Overview

PDFEditorApp (main.py)
    │
    ├── PDFEngine (core/pdf_engine.py)
    │       ├── UndoManager      — command history
    │       ├── PageCache        — LRU rendering cache
    │       ├── LayerManager     — per-page layer tracking
    │       └── TextAnalyzer     — text block detection
    │
    └── UI Layer (main.py)
            ├── Toolbar          — tools, fonts, colors
            ├── Canvas           — page rendering + events
            ├── Thumbnails Panel — page navigation
            └── Properties Panel — layers listbox

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🤝 Contributing

1. Fork the repository
2. Create a feature branch: git checkout -b feature/my-feature
3. Commit: git commit -m "feat: describe your change"
4. Push: git push origin feature/my-feature
5. Open a Pull Request

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📄 License

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

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👤 Author

Hayder Odhafa / حيدر عذافة GitHub: @Hayder-IRAQ

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Made with ❤️ using Python + PyMuPDF — PDF Editor Pro v3.0 © 2025 Hayder Odhafa