pdf-tool
Free, private PDF tools that run entirely in your browser. Your files never leave your device — there is no backend, no upload, no server processing.
Built with Next.js 16, pdf-lib, pdf.js, and qpdf-wasm.
Privacy
All processing happens locally using WebAssembly and the browser's native APIs. Files are never uploaded to any server.
Tools (22)
| Category | Tools |
|---|
| Organize | Merge PDF, Split PDF, Rotate PDF, Delete Pages, Extract Pages, Organize PDF, Compress PDF |
| Page tools | Watermark PDF, Add Page Numbers, Crop PDF, Pages Per Sheet, Flatten PDF |
| Edit | Edit Metadata, Extract Images, Compare PDF, Edit PDF |
| Convert | Images to PDF, PDF to JPG |
| Forms & sign | Fill PDF Form, Sign PDF |
| Security | Protect PDF, Unlock PDF |
Development
npm install
npm run dev # start dev server at http://localhost:3000
npm test # run unit tests (Vitest, 29 tests)
npm run build # production build (must exit 0)
npx tsc --noEmit # type check
Production build
npm run build
# Outputs a fully static site — all 24 routes prerender as static HTML.
Deployment
This project outputs a standard Next.js static/server build and can be deployed to any Node.js host or CDN.
Vercel (recommended):
# Preview deployment
npx vercel
# Production deployment
npx vercel --prod
Or connect the repository in the Vercel dashboard — no additional configuration required. The public/qpdf.wasm file is served as a static asset automatically.
Other hosts:
npm run build
# Serve the .next/ output with `next start`, or export to static HTML:
npx next export # if all pages are static (they are in this project)
Phase 2 roadmap
See docs/superpowers/specs/ for planned features including OCR, advanced compression, batch processing, and additional format conversions.
Tech stack
