You can add your signature to a PDF in under a minute, without printing, scanning, or installing anything. Here's how — and how to keep it private.
The old way to sign a document was: print it, sign with a pen, scan it back, email it. That's slow and it degrades the file. Signing a PDF digitally skips all of that — you draw or type your signature once and drop it onto the page. Here's how to do it and what to watch for.
Open a sign-PDF tool, load your document, create your signature (type it and pick a style, or draw it with a mouse or finger), then place it where it belongs and resize it to fit the signature line. Export, and you have a signed PDF ready to send. The whole thing takes under a minute and needs no account.
A signature is sensitive — it's literally your identity on a page. The most private way to sign is a tool that works entirely in your browser, so the document never gets uploaded to a server at all. Our sign tool does exactly that: your file and your signature stay on your device. Look for a zero-knowledge or in-browser badge before signing anything important.
If your PDF is an interactive form (with fillable boxes), you may want to fill the fields first and then sign — a forms tool handles the typed fields, and the sign tool adds the signature on top. For a flat document with no form fields, you can type directly onto it with an edit tool and then add your signature.
Placing a signature image on a PDF is fine for the vast majority of everyday agreements. If you need a qualified e-signature with a verifiable audit trail (some legal or financial contexts require this), that's a separate, heavier process — but for signing a quote, a permission slip, or an internal form, the tools below are exactly what you want.