PDF Sign

Sign a PDF online — free and private

Signing a PDF usually means printing it, signing with a pen, and scanning it back — or uploading the document to a website that stores it on a server. This tool skips all of that. You add your signature and place it right in your browser, and the PDF never leaves your device. Nothing is uploaded, nothing is stored, and no account is needed. The file you sign stays entirely on your computer or phone.

That privacy matters for the documents people actually sign — contracts, agreements, consent forms, official paperwork. These are exactly the files you don't want sitting on someone else's server. Here there's nothing to leak, because the signing happens locally.

Draw or upload your signature

You create your signature one of two ways. Draw it directly on the signature pad with your mouse, finger, or stylus — take as many strokes as you need to get it right, then confirm it with "Use this signature." Or upload an image of a signature you already have, as a PNG or JPG. Either way, the signature becomes yours to place on the document.

Place it where you need it

Once your signature is ready, you decide where it goes. Put it on the current page, or add it to every page at once — useful when each page needs initialling. After it's placed, drag it to exactly the right spot, and use the corner handle to make it bigger or smaller until it fits. You can sign as many pages as you need before saving.

Your document's text stays intact

The signature is placed as an image on top of the page, so it doesn't flatten or rasterise your document. The existing text stays selectable and searchable, exactly as it was — you're adding a signature, not turning your PDF into a picture. If you need to do more than sign — add text, highlights, or notes — the PDF Editor handles that, also in your browser.

Works on your phone

It runs in your phone's browser with no app to install, and signing with a finger feels natural on a touchscreen. Open a PDF on your iPhone or Android, draw your signature right on the screen, place it, and share the signed file straight from your device. For documents that arrive on your phone and need signing on the spot, that's the whole point — no moving the file to a computer first.

How to sign a PDF

Add your PDF. Create your signature by drawing it on the pad or uploading an image. Choose to sign the current page or all pages, then drag and resize the signature to fit. When it looks right, save — and download the signed PDF on a computer, or share it from your phone.

Common uses

People sign PDFs to return a contract without printing, to add their signature to an agreement or consent form, to initial each page of a multi-page document, to sign a form before sending it back, or to approve paperwork on the go. Anything that needs your signature but shouldn't need a printer and scanner.

Frequently asked questions

Are my files uploaded to a server?

No. The signing happens entirely in your browser, on your own device. Your PDF and your signature never leave your computer or phone, and nothing is stored anywhere.

How do I create my signature?

Draw it on the signature pad with your mouse or finger — add as many strokes as you need — then confirm with "Use this signature." Or upload a PNG or JPG image of your signature.

How do I place my signature on the page?

After creating it, choose to sign the current page or all pages. The signature appears on the page; drag it to move it, use the corner handle to resize it, then save.

Is this a legally binding e-signature?

It adds a visual signature image to your PDF. Whether that counts as legally binding depends on your jurisdiction and the agreement involved — check your local rules for qualified electronic signatures if that matters for your document.

Will signing change my document's text?

No. Your signature is placed as an image on top of the page, so the existing text stays selectable and searchable.

Does it work on mobile?

Yes. It runs in your phone's browser with no app to install — draw your signature with your finger, place it, and share the signed PDF straight from your device.