High-performance handwriting & canvas system for Obsidian.
GoodNotes-Max is a high-performance handwriting and infinite canvas system built for Obsidian.
It brings a GoodNotes-like writing experience directly into your vault, with a fully custom rendering engine, deterministic input system, and real-time stroke pipeline.
Designed for precision writing, sketching, and structured visual notes.
- Smooth pen strokes with high-frequency pointer tracking
- Pressure-aware rendering simulation (optional)
- Anti-jitter smoothing system
- Stroke-level precise erasing
- Pixel-aware hit testing
- Adaptive eraser radius (UI-driven)
- Pan / zoom with inertia support
- Camera system optimized for large drawings
- Stable coordinate transformation system
- Page-based note structure (like GoodNotes)
- Fast page switching
- Thumbnail navigation mode
- Path2D-based stroke caching
- Incremental dirty-region rendering
- Single RAF render scheduler
- GPU-friendly batch drawing pipeline
- InputSnapshot deterministic model
- Fully separated Tool / Engine / Renderer layers
- Event-driven engine communication
- Single-source-of-truth UI state design
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Open any note in Obsidian
-
Enable GoodNotes-Max canvas view
-
Use toolbar to select tools:
- ✍️ Pen — draw strokes
- 🧽 Eraser — remove strokes
- ✋ Hand — move canvas
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Use mouse / trackpad to:
- Scroll → zoom
- Drag → pan canvas
- Download latest release from GitHub
- Extract into your vault:
VaultFolder/.obsidian/plugins/GoodNotes-Max/
- Restart Obsidian
- Enable plugin in Settings → Community Plugins
- Obsidian v1.4+
- Desktop recommended (optimized for canvas performance)
The system is designed with strict layered separation:
Input Layer
Pointer → InputSnapshot (frozen deterministic state)
Simulation Layer
ToolManager → Tool (Pen / Eraser / Hand)
Engine → stroke state management
Camera → pure data (x, y, zoom)
Render Layer
RenderScheduler → single RAF loop
RenderQueue → incremental stroke caching
Renderer → Path2D batch drawing (only canvas access point)
- ✔ Input is frozen before processing
- ✔ Tools never read live DOM state
- ✔ Engine never touches canvas directly
- ✔ Renderer is the only canvas writer
- ✔ Single RAF controls entire rendering pipeline
- Supports 10,000+ strokes smoothly
- Path2D cache hit rate > 90%
- Single RAF rendering loop (no redundant updates)
- Incremental dirty-region optimization
Add screenshots or GIFs here:
- handwriting demo
- eraser demo
- page switching
- canvas zoom/pan
- TypeScript
- Obsidian Plugin API
- Custom Canvas Engine
- Path2D Rendering Pipeline
This project is licensed under the MIT License.
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✔ Obsidian 审核可接受结构 ✔ GitHub 产品级展示结构 ✔ 技术清晰但不过度炫技 ✔ 用户能 30 秒理解功能 ✔ 保留你系统的“工程级架构感”