Runs entirely on this device

PDF Tools

Pick a tool. Everything runs locally in this browser tab — no file you open here is ever uploaded anywhere.

Remove an existing password from a protected PDF.

Add AES-256 password protection to a PDF.

Export every page as a PNG or JPEG.

Combine multiple files into one.

Combine photos into a single PDF.

Shrink a PDF's file size.

How it works. These tools load MuPDF compiled to WebAssembly and process your file in the browser's memory — the same engine desktop PDF apps use, just running locally instead of on a server. First load pulls down about 10 MB of engine files; after that it works from cache.