PDF tools that never leave your desk.

Every implement on this desk runs in your browser. Files you open are loaded into memory, worked on, and saved back — they are never sent to a server. There is no upload, no account required, and no telemetry on your documents.

We use pdf-lib for editing, pdfjs-dist for rendering, tesseract.js for OCR, and a small set of friends. The whole thing is open source under MIT.