Open FillSign — free

How to sign a PDF online for free

Add an electronic signature to any PDF in your browser — draw it with your mouse or finger, drop it onto the page, and download. No upload, no account, no subscription.

Free e-signature No signup Private — runs locally
Open FillSign — it's free

Sign a PDF in your browser — no software to install

You don't need Adobe Acrobat, a scanner, or a printer to sign a PDF. With FillSign you draw your signature once and place it anywhere on the document, all inside your web browser. Because the work happens on your own device, your signed contract or agreement never gets uploaded to a server.

Step-by-step: place your signature on a PDF

1
Open your PDF in FillSign Go to fillsign.app and drag your PDF onto the page (or click to choose it). It opens instantly and stays on your device.
2
Click the Sign tool Select Sign in the toolbar. A signature pad appears where you can draw.
3
Draw your signature Use your mouse, trackpad, or finger on a touchscreen to draw your signature. Pick blue or black ink, and press Clear to start over if it's not quite right.
4
Place it on the document Press Use signature, then click the spot on the page where it belongs. Your signature drops in right there.
5
Resize and position Drag the signature to move it, and drag the corner handle to make it bigger or smaller so it fits the signature line cleanly.
6
Download your signed PDF Click Download PDF. Your signature is baked into the document with no watermark and no email required.
Open FillSign — it's free

Drawn signature vs. certified digital signature — the honest version

This part matters, so here's a straight explanation. When you draw your name and place it on a PDF, you're creating a drawn (electronic) signature — essentially a picture of your signature added to the page. In everyday life, electronic signatures like this are widely accepted and, in many countries, are legally recognized for most common agreements. They're great for things like consent forms, internal documents, simple agreements, and forms a person asked you to "just sign and send back."

That is not the same as a certified digital signature. A certified digital signature uses cryptography and a trusted digital certificate to verifiably prove who signed a document and that it hasn't been altered since. Those are issued through certificate authorities and dedicated e-signature platforms with audit trails, identity verification, and tamper-evidence. FillSign does not create certified digital signatures.

Not legal advice. Whether a drawn electronic signature is valid for your specific document depends on your country, the type of agreement, and the other party's requirements. Some documents (certain wills, deeds, or notarized forms) require a handwritten signature or a certified e-signature. If anything important is at stake, confirm the requirements for your situation or consult a qualified professional before relying on a drawn signature.

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