Just Sign ItSign a PDF without uploading it
Just Sign It opens and signs your PDF right in your browser. Your file never gets uploaded, so it never leaves your computer or phone.
What usually happens when you sign a PDF online
Most online PDF tools upload your file to their servers, add your signature there and send you back the result. That means your lease, tax form or medical paperwork is now sitting on someone else’s computer, for as long as they decide to keep it. For a lot of what people sign, that’s not great.
How this one works instead
Your PDF is opened, shown and signed by code running in your own browser. When you hit download, your browser puts together the signed copy and saves it straight to your device.
There’s no server behind it that accepts files, and the site’s security settings block the page from sending data to any other website. The code is open source on GitHub if you want to see for yourself.
Check it yourself
Open your browser’s developer tools, go to the Network tab, then open and sign a PDF. You’ll see the page load its own code and fonts, but your document never goes anywhere.
How it works
- Drop your PDF onto the page, or click “Choose PDF”.
- Click “New signature”. Draw it, type your name in a handwriting font, or upload a photo of it.
- Click your signature to place it. Drag it where it goes and use the corner dot to resize it.
- Click “Download signed PDF”. That’s it.
Questions
Is my PDF stored anywhere?
No. It only lives in your browser’s memory while the page is open. Close the tab and it’s gone.
Are my signatures stored?
Only if you check “Remember my signatures”. Then they’re saved in your browser on that device and nowhere else.
Does it work with password-protected PDFs?
No. If a PDF is locked against editing, you’ll need to unlock it first. Opening it and using Print → Save as PDF usually does the trick.