About PDF ProMaster

PDF ProMaster is a collection of free tools for everyday PDF jobs: merging, splitting, compressing, converting to and from Word and images, reading scanned pages, signing, protecting and more.

Why it's different

Most online PDF tools upload your document to a server, process it there and send it back. That means contracts, payslips, ID scans and medical letters sit on someone else's computer, even if only for a while.

PDF ProMaster works the other way round. The tools run inside your web browser, so your files are opened and changed on your own device and never leave it. It's often quicker too, because there's no upload or download to wait for.

What we promise

• Every tool is free, with no daily limits and no watermark added to your files.
• No sign-up or account.
• No adverts and no tracking cookies.
• Your files are never uploaded or stored.

How we keep that promise

Every tool is tested automatically: we process real files while recording all network traffic, and check that nothing is sent anywhere. The tools are built on well-established open-source software, listed with its licences on our open-source licences page.

Found a problem or want a new tool? Get in touch.