Free PDF tools that never upload your files
Merge, split, sign, crop, unlock, rotate, delete pages and convert between PDF and images — all without sending a single byte to a server. Most PDF sites upload your document, then limit how many files you can process or ask you to pay. These tools do the work on your own device, so they are free, unlimited, private, and they keep working offline.
Your files never leave your browser
Other PDF sites upload your document to a server, then cap how many files you can process or ask you to pay. This one does the work on your own device in plain JavaScript — nothing is transmitted, nothing is stored, and there is no daily limit. Use a tool once and it keeps working with no connection at all afterwards.
Are these PDF tools really free?
Yes. There is no account, no paid tier and no usage limit. They exist because the common alternatives either upload your documents, watermark the output, or stop working after a few files a day.
Do my files get uploaded to a server?
No. Every tool reads your file into the browser’s memory and does the work there in JavaScript. Nothing is transmitted, which is why there are no limits — and once you have used a tool once, it keeps working with no connection at all.
Is there a file size limit?
None is imposed. Because processing happens on your device, the practical ceiling is your available memory — a large scanned document simply takes a little longer.
Do the results have a watermark?
No. Output files are clean, with no branding and no trial notice.
Can I use these on a phone?
Yes. The tools are responsive and work in mobile browsers, though very large documents are limited by phone memory.
Can they open password-protected PDFs?
Most of them cannot — an encrypted PDF cannot be edited without its password. But if you know the password, or the file merely restricts printing and copying, the Unlock PDF tool removes the protection first, and the rest of the tools then work on the result.