Skip to content
PDF Studio

Free · No account · No uploads

Free PDF tools that never upload your files

Merge, compress, split, protect and convert PDFs right in your browser. Your documents stay on your device from start to finish.

The promise

  • Runs on your device

    Every tool works inside your browser with WebAssembly and Web Workers. There is no server that processes files.

  • 0 bytes uploaded

    Your PDFs are never sent anywhere. The counter in the header shows how much file data has left the page: always zero.

  • Works offline

    After the first visit the app and its engines are cached, so the core tools keep working without a connection.

  • Built on permissive open source

    pdf.js, qpdf, PDFium, pdf-lib and MozJPEG under MIT, BSD, Apache and similar licences. Every notice is listed.

Read exactly what runs where on the privacy page.

All tools

How it works

  1. 1

    Open a tool

    Pick a tool below or open the workspace for multi-step jobs.

  2. 2

    Add your files

    Choose or drop files. They are read into this tab's memory, not uploaded.

  3. 3

    Save the result

    Processing runs on your device, then the new file is saved straight to your downloads.