Sign PDF

Sign a document without printing it: draw your signature with a mouse or finger, type your name in a script style, or upload a scan of your signature — then tap the page preview to place it and download the signed PDF.

It runs entirely in your browser, so your document never leaves your device. If the file also needs its hidden details stripped first, use the Remove PDF Metadata tool, or fix sideways pages with the Rotate PDF tool.

What a signature in a PDF does — and does not — prove

This tool adds a visible image of your signature onto a page, like signing with a pen. It shows that someone placed a signature there, and it is accepted for many everyday forms, permission slips and internal approvals. It is not a cryptographic digital signature: there is no certificate, no identity check and no tamper-evident seal, so it cannot prove the file was never altered after signing, and it will not satisfy a bank, a court or a government portal that asks for a certified digital signature.

Placing the signature

The preview shows the chosen page at a readable size. Tapping it sets the centre of the signature; the tool converts that tap into PDF coordinates, remembering that PDF pages measure from the bottom-left corner while screens measure from the top-left. The signature is drawn about 150 points wide — roughly 5 centimetres — and scales to keep its proportions, so a wide signature stays readable and a tall one does not overflow the page.

Draw, type or upload

Drawing with a finger or stylus gives the most personal result; typing renders your name in a script font for a quick, tidy signature; uploading a scanned signature keeps the exact look of your pen signature, including any flourish. Whichever you choose, the signature image is embedded into the PDF itself, so it travels with the file and shows in any PDF reader.