PaperPilot – Zero-Cloud, Pure-Rust PDF Engine with WASM and MCP

PaperPilot PDF tools for your AI agent — and for you. Pure Rust. Runs locally. Files never leave your machine. Try it in your browser → · Download · Roadmap PaperPilot is a PDF and document toolkit written in Rust. The same engine runs as: No Chromium, no C++ runtime, no cloud calls. Quick start 1. Use it with Claude / Cursor (MCP) Download paperpilot-mcp from Releases, then add it to claude_desktop_config.json: { "mcpServers": { "paperpilot": { "command": "/path/to/paperpilot-mcp" } } } Restart Claude and try: "Merge these two PDFs and compress the result." 2. Use the CLI # Merge paperpilot merge --inputs doc1.pdf doc2.pdf --output merged.pdf # Compress paperpilot compress --input in.pdf --quality 75 --output compressed.pdf # Rotate pages 1, 3–5 by 90° paperpilot rotate --input in.pdf --pages 1,3-5 --angle 90 --output out.pdf 3. Use it in the browser Go to usepaperpilot.com. Open your browser's Network tab while you work — you'll see no file uploads. 4. Build from source git clone https://github.com/KrushnaVardhanReddy/PaperPilot.git cd PaperPilot cargo build --release -p paperpilot-cli -p paperpilot-mcp -p paperpilot-gateway Desktop app: cd apps/desktop && pnpm install && pnpm tauri dev Requires Rust 1.75+, Node.js, and pnpm. What it can do today (v0.6) Organize: merge, split, rotate, delete pages, reorder pages, extract pages, booklet imposition, N-up grid Optimize: compress Extract: plain text, OCR (pure-Rust PaddleOCR via rten) Security: watermark, validate signatures, remove signatures, PII scan, deep sanitize Office data: Excel → JSON, Excel → CSV Coming next (see ROADMAP.md): v0.7: PDF ↔ Markdown / HTML / JSON v0.8: PDF → Word / Excel / PowerPoint v0.9: encrypt, decrypt, sign, redact, forms, annotations v1.0: render, flatten, repair, compare, PDF/A, Bates numbering Why another PDF tool? Private by default. Everything runs locally or in your browser tab. Agent-ready. MCP support is first-class, not an afterthought. One engine, many surfaces. CLI, MCP, REST, WASM, and desktop share the same Rust core, so behavior is consistent. Small and dependency-light. Pure Rust, built on lopdf, pdf_oxide, rten, and friends. Benchmarks Run cargo bench --workspace to reproduce. Methodology and results: SYSTEM_BENCHMARK_REPORT.md. Architecture Desktop (Tauri) · CLI · REST (Axum) · MCP (stdio) · WASM (browser / edge) │ Rust core workspace paperpilot-core · paperpilot-pdf · paperpilot-nlp · paperpilot-gateway paperpilot-mcp · paperpilot-wasm · paperpilot-storage Embed in your own site Local REST API paperpilot serve --port 7823 curl -X POST http://localhost:7823/api/v1/pdf/merge \ -H "Content-Type: application/json" \ -d '{"inputs": ["a.pdf", "b.pdf"], "output": "out.pdf"}' Swagger docs at http://localhost:7823/docs. Contributing Issues and PRs are welcome. Good first contributions: bug reports with a sample PDF, new tool requests, and docs fixes. License Community Edition (this repo): Apache 2.0. It includes the CLI, MCP server, REST gateway, WASM engine, and desktop app. An Enterprise Edition (SSO, RBAC, audit logs, DLP) is developed separately.