How to Sign a PDF for Free (Without Printing Anything)

By Daniel · Updated July 2026

The print-it-sign-it-scan-it dance is one of those small rituals that somehow survived into an era when almost nothing else needs paper. You get a form, you hunt for a printer, you sign it, you find something to scan it with, and you email back a slightly crooked photo of a page. There's a much faster way, and it doesn't cost anything.

First, two different things people call "signing"

It helps to be clear about which one you actually need, because they're not the same:

  • A visible signature — an image of your handwriting placed on the page. This is what everyday forms, leases, permission slips and letters ask for.
  • A digital signature — a cryptographic certificate that mathematically ties the document to your identity and flags any later tampering. This is a heavier, formal mechanism required in specific legal and regulated settings.

For the vast majority of documents — a contractor agreement, an NDA between two small parties, a school form — a placed signature is accepted and perfectly appropriate. You almost certainly don't need certificates and authorities for it.

How to sign a PDF the visible way

  1. Open the Redact & Sign PDF tool and drop in the document.
  2. Click Sign. You can draw your signature with a trackpad or finger, type your name in a signature font, or upload a photo of your real signature.
  3. Drag it onto the signature line and resize it so it sits naturally — not comically large.
  4. Click Export PDF to download the signed file.

Making it look right

A couple of small things separate a clean signed document from an obvious paste job. If you're uploading a photo of your signature, sign in dark ink on plain white paper, then crop tightly around the strokes so you're not dragging a grey rectangle onto the page. If you're drawing, a stylus or finger on a touchscreen gives a far more natural line than a mouse. And size it to match the line it's sitting on — an oversized signature is the giveaway that it was dropped in.

When you export, the signature is flattened into the page, so it can't be dragged off or quietly swapped out afterwards. That's what you want on a document you're sending to someone else.

When you genuinely need a certificate-based signature

If a bank, a court, or a government body specifically asks for a "qualified" or certificate-based electronic signature — the kind tied to standards like eIDAS — a drawn image won't satisfy that requirement. For those cases you'll need a service that issues you a digital certificate. It's worth knowing the distinction exists, but it's also worth knowing that everyday paperwork rarely calls for it.

Redact & Sign PDF
Draw, type or upload a signature and place it on the page. Free, nothing uploaded.
Open the tool →

Common questions

Is a drawn or typed signature legally binding?

For everyday agreements, electronic signatures are widely accepted, and a placed signature is often enough. It is not the same as a certificate-based digital signature, though, so if a document specifically demands that, check the requirement before relying on an image.

Can the signature be moved or deleted after signing?

No — the export flattens the signature into the page, so it becomes part of the document rather than a loose element someone could reposition.

Do I need an account, app, or subscription?

None of the above. It runs in your browser, the file stays on your device, and there's nothing to install or sign up for.

Keep reading

Redacting a PDF properly · Merging and reordering pages · Converting HEIC photos