Think about what a signing service holds after you use it: the contract, and a high-resolution copy of your handwritten signature. Those are the two most identity-sensitive artefacts you produce, and neither needs to leave your device to put one on the other. Here is the private way.
The two-minute flow
- Open Sign PDF and drop the document — it renders right in the page.
- Create your signature: draw it with mouse, finger or stylus, or type your name in a script font.
- Click the page where the signature belongs; drag to fine-tune, use the slider to size it. Repeat anywhere — other pages included.
- Download. The signature is stamped into the PDF exactly as placed.
Document and signature both stay on your device — nothing transmits, nothing is retained.
Getting a signature that looks like yours
On a laptop, the trackpad produces a shaky line — a phone or tablet screen with a finger gives a far more natural stroke, and this page works the same there. Drawing tip: sign larger than feels natural; the pad crops to the ink and you scale it down on the page, which smooths the line. The typed option uses a script face and is perfectly acceptable for the countless documents where the signature is a formality.
The honest part: what this is and isn't
An image signature placed with intent is a legally recognised electronic signature for ordinary agreements — see the FAQ for the specifics. What it is not is a certificate-based digital signature with cryptographic identity proof; a few government and regulated-industry filings require those from a certificate authority. If a portal asks for a "DSC" or "qualified signature", that is your signal this method won't apply. For everything else — the daily paperwork of life — this is exactly how it's done, minus the account and the server copy. Assemble annexures first with Merge PDF, and add page numbers after merging so "page 4 of 12" is true.