A free PDF signer that runs entirely on your device. Your file is never uploaded — opened, signed, and downloaded right here in your browser.
No upload to a server, no waiting for a queue, no account creation. Just the document you want to sign.
Click Open PDF or drag a file into the window. It loads instantly because it never leaves your computer — everything happens locally in your browser.
Draw a signature with your mouse or finger, type text into form fields, leave comments, or highlight passages. Place signatures anywhere on any page.
Click Download. Your annotations are baked into a fresh PDF that opens in any reader. Print it, email it, or send it on — it's yours.
Most online PDF signers upload your file to their servers, where it sits during processing — and sometimes long after. We took a different route: everything happens in your browser.
The PDF is read directly by your browser using JavaScript. Our servers never see it, store it, or even know it exists.
There is nothing to sign up for. We can't email you because we don't ask for your address.
We don't read filenames, page counts, or contents. There's nothing to read — it never reaches us.
After the page loads, you can disconnect. Signing and downloading both work without internet.
Step-by-step walkthroughs for common documents, plus the legal background on electronic signatures.
Open your PDF, sign it, download it. Nothing leaves your browser.
✎ Open the tool