TanStack
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router
TanStack Router is a type-safe, data-driven React router with built-in caching, prefetching, and nested layouts, while TanStack Start extends it into a full-stack SSR framework.
pdfstudio
pdfstudio is a client-side PDF toolkit that runs in the browser, Node.js, or Cloudflare Workers, powered by qpdf compiled to WebAssembly, offering a comprehensive set of PDF manipulation operations without any data leaving the device.
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91
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4
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License
Apache-2.0
Last updated
2026-07-11
AI repository intelligence
FR-AI / ANALYSISWhy it is worth attention
Unlike typical online PDF services that upload your documents to a server, pdfstudio performs all operations locally using the battle-tested qpdf engine compiled to WebAssembly, ensuring privacy and security while providing a rich, typed TypeScript API.
Who it is for
- Web developers building privacy-focused PDF tools
- Users needing offline or serverless PDF processing
- Node.js developers integrating PDF manipulation into backend services
- Developers deploying on Cloudflare Workers requiring PDF capabilities
Use cases
- Create a secure PDF editor that never uploads documents
- Merge, split, or encrypt confidential contracts and statements locally
- Build a serverless PDF unlock/compress endpoint on Cloudflare Workers
- Batch process PDFs in a Node.js server without external dependencies
Strengths
- Comprehensive feature set covering lock, unlock, merge, split, rotate, watermark, compress, repair, and more
- Privacy-preserving: all processing happens client-side, no data transmitted
- Cross-environment support: browser, Node.js ≥18, and Cloudflare Workers with same API
- Typed TypeScript API with detailed page range syntax and error handling
Considerations
- Large documents may exceed the 128 MB memory limit on Cloudflare Workers
- CPU-intensive operations may be challenging on Cloudflare's free tier (10 ms budget)
- Requires WebAssembly support, not available in older browsers without polyfills
README quick start
Usage
Description
Client-side PDF toolkit — lock, unlock, merge, split & rotate PDFs in the browser. qpdf compiled to WebAssembly, fully typed, files never leave the device.
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