About The PDF Studio

The PDF Studio is a collection of everyday PDF tools – merge, split, compress, convert, edit, sign and protect – that run entirely inside your web browser.

Why in the browser?

Most online PDF services upload your files to a server. Documents often contain contracts, IDs, invoices and other private information, so we took a different approach: your files are processed locally using your own device and are never sent to us. That also makes the tools fast – there is no upload or download queue.

Free and Pro

Every tool is free to use: 5 runs across all tools every 2 hours, supported by ads. A Pro plan with unlimited use and no ads is coming – see Pricing.

Open-source building blocks

The PDF Studio is built on excellent open-source projects including pdf-lib, PDF.js, JSZip and Tesseract.js. See the full list of licences.