Free PDF tools that never upload your file
Merge, split, rotate, reorder and convert PDFs right here. Every tool runs on your own device, so your document is never sent to a server — and when you're done, you can turn the result into a shareable link in one tap.
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Convert
Protect
Why these run on your device, not ours
Most online PDF tools upload your document to a server, change it there, and promise to delete it in an hour. That is a reasonable promise and it is still a promise — your contract, payslip or ID scan left your device to a company you have no relationship with.
These tools do the work in the browser tab instead, so there is nothing to promise. The honest trade-off is the size limit: your phone has less memory than a server, so jobs are capped around 40 MB. For anything larger, split it first.
Questions
Are these PDF tools really free?
Yes, and there is no sign-up, no watermark on the output and no daily task limit. The tools run on your own device, so they cost us nothing to offer — which is why there is no catch to explain.
Do my files get uploaded to your server?
No. Every tool on this page runs in your browser using JavaScript. The file is read from your disk into the tab's memory, changed there, and handed back to you. It is never sent over the network, so there is no copy of it on our servers to delete.
Is there a file size limit?
Yes — about 40 MB per job. Because the work happens on your own device rather than a server, a very large PDF would use more memory than a phone browser allows and the tab would be closed by the operating system. We stop with a clear message before that happens instead.
Do these work on a phone?
Yes. Every tool is built mobile-first with tap-sized controls, and none of them needs drag-and-drop. The only practical difference on a phone is that memory is tighter, so very large documents are more likely to hit the size limit.
Can I share the result after using a tool?
Yes, and that is the part most PDF tools miss. After any tool finishes, you can turn the result into a clean public link with a QR code in one more tap, so you can send it to someone instead of emailing an attachment.
Why is there no compress tool?
Because a good one cannot be built in the browser, and a bad one wastes your time. How much a PDF shrinks depends almost entirely on what is inside it — a scan can lose 80%, a text contract barely 5%. We wrote up how to tell which you have rather than shipping a button that usually disappoints.
Related reading
- How to reduce a PDF’s file size — and how to tell when it simply won’t shrink.
- How to password-protect a PDF for free — on Mac, Windows and phone.
- How to embed a PDF on a website — and why the usual tags break on iPhone.
- How to turn a PDF into a link