Orbit
Orbit PDF 🚀
Master your PDFs with absolute privacy.
Orbit PDF is a professional, high-performance PDF toolkit that runs entirely in your browser. By leveraging powerful WebAssembly (WASM) engines, it ensures your documents never leave your device, providing world-class security and speed.
✨ Why Orbit PDF?
- 🔒 100% Private & Secure: All processing happens locally in your browser's sandbox. Zero server uploads, zero data transfer.
- ⚡ Native Speed: Powered by a high-performance WASM engine for desktop-class processing speeds.
- 📱 Offline Capable: Fully functional without an internet connection. Install it as a PWA for a seamless desktop experience (available soon).
- ♾️ Unlimited Everything: No daily quotas, no file size caps, and no subscriptions. Batch process as much as your hardware handles.
🛠️ Essential Tools
| Tool | Description |
|---|---|
| Merge PDF | Combine multiple files into one. Drag and drop to reorder. |
| Split PDF | Extract pages, split ranges, or divide files into multiple documents. |
| Compress PDF | Reduce file sizes while maintaining professional quality. |
| Image to PDF | Instant conversion for JPG, PNG, and HEIC formats. |
| PDF Multi-Tool | The ultimate workspace to rearrange, rotate, and export pages. |
🚀 Tech Stack
Orbit PDF is built with cutting-edge technologies for maximum performance and reliability:
- Frontend: Svelte 5 (Runes), SvelteKit
- Styling: Tailwind CSS 4.0
- PDF Core:
pdf-lib,pdfjs-dist - WASM Engine:
@neslinesli93/qpdf-wasm - Icons: Lucide Svelte
- Linting: Biome
🛠️ Local Development
Prerequisites
You'll need Bun (recommended) or Node.js installed.
Installation
# Clone the repository
git clone https://github.com/kanakkholwal/orbit.git
# Navigate to the project
cd orbit
# Install dependencies
bun install
Development
# Start the development server
bun run dev
# Open in browser
# http://localhost:5173
Building for Production
# Create a production build
bun run build
# Preview the build
bun run preview
🤝 Contributing
Contributions are welcome! If you have an idea for a tool or a feature, feel free to open an issue or submit a pull request.
Star History
📦 Dependency Licenses
Orbit PDF uses a number of open-source dependencies. Because several dependencies use licenses other than MIT (Apache-2.0, OFL-1.1, MPL-2.0), the project as a whole is licensed under GPL-3.0. Below is a summary of the key dependency licenses:
Direct Dependencies
| Package | License | Notes |
|---|---|---|
svelte, @sveltejs/kit |
MIT | Frontend framework |
tailwindcss, @tailwindcss/vite |
MIT | CSS framework |
pdf-lib |
MIT | PDF creation & manipulation |
@pdf-lib/fontkit |
MIT | Font embedding for pdf-lib |
@embedpdf/* (core, plugins) |
MIT | PDF viewer engine |
@lucide/svelte |
ISC | Icon library |
@neslinesli93/qpdf-wasm |
ISC | WASM-based PDF compression |
nanoid |
MIT | Unique ID generation |
clsx, tailwind-merge |
MIT | CSS utility helpers |
mode-watcher |
MIT | Dark/light mode management |
sortablejs |
MIT | Drag-and-drop sorting |
heic2any |
MIT | HEIC image conversion |
jszip |
MIT OR GPL-3.0-or-later | ZIP file handling (used under MIT) |
node-forge |
BSD-3-Clause OR GPL-2.0 | Cryptography (used under BSD-3-Clause) |
pdfjs-dist |
Apache-2.0 | Mozilla's PDF.js renderer |
tesseract.js |
Apache-2.0 | OCR engine |
xlsx |
Apache-2.0 | Spreadsheet parsing |
@tauri-apps/cli, @tauri-apps/* |
Apache-2.0 OR MIT | Desktop app framework (dual-licensed) |
@fontsource-variable/google-sans |
OFL-1.1 | Google Sans variable font |
@embedpdf/fonts-* |
OFL-1.1 | Bundled font files (Arabic, Hebrew, CJK, Latin) |
Transitive Dependencies (notable)
| Package | License | Notes |
|---|---|---|
lightningcss |
MPL-2.0 | CSS transformation (used by Tailwind CSS internally) |
pako |
MIT AND Zlib | Zlib compression |
Various @babel/* |
MIT | Build tooling |
Various @types/* |
MIT | TypeScript type definitions |
License Compatibility Summary
| License | Count | Description |
|---|---|---|
| MIT / MIT* | ~145 | Permissive — no restrictions on use |
| ISC | 5 | Functionally equivalent to MIT |
| 0BSD | 1 | Public-domain equivalent |
| Apache-2.0 | 18 | Permissive, requires attribution; compatible with GPL-3.0 |
| Apache-2.0 OR MIT | 6 | Dual-licensed permissive (Tauri) |
| BSD-2-Clause / BSD-3-Clause | 3 | Permissive — requires attribution |
| OFL-1.1 | 8 | Font license — embedded fonts may not be sold standalone |
| MPL-2.0 | 2 | Weak copyleft (lightningcss — transitive) |
| MIT OR GPL-3.0-or-later | 1 | Dual-licensed (jszip, used under MIT) |
| BSD-3-Clause OR GPL-2.0 | 1 | Dual-licensed (node-forge, used under BSD-3-Clause) |
| MIT AND Zlib | 1 | Permissive combination (pako) |
Why GPL-3.0? The presence of Apache-2.0 licensed packages (pdfjs-dist, tesseract.js, xlsx) and MPL-2.0 packages (lightningcss) means that not all dependencies are MIT. Apache-2.0 is compatible with GPL-3.0 (but not GPL-2.0), so GPL-3.0 is the appropriate copyleft license for this project. This ensures that any fork or derivative work of Orbit PDF must also be open-source under the same terms and must credit the original authors.
📄 License
This project is licensed under the GNU General Public License v3.0 (GPL-3.0) — see the LICENSE file for details.
What this means for you:
- ✅ You may use, study, and modify this software freely.
- ✅ You may distribute copies of the original or modified versions.
- ⚠️ Any distributed fork or derivative work must also be released under GPL-3.0.
- ⚠️ You must provide the source code when distributing the software.
- ⚠️ You must retain and display the original copyright notice and credit Kanak Kholwal / Orbit PDF.
Copyright (C) 2026 Kanak Kholwal — https://github.com/kanakkholwal/orbit
