How to sign a PDF online for free — and make the signature actually hold up

Someone sent you a PDF and asked you to sign it. You don't want to print it, scribble on it, scan it back and email a crooked photo. You also don't want to start a €25/month subscription for a single signature.

You don't have to. Signing a PDF electronically is free, takes under a minute, and — done right — carries more legal weight than the printed-and-scanned version most people still send.

The 60-second version

1. Open the PDF in a signing tool.
2. Drag a signature field onto the spot where your name belongs.
3. Draw your signature with a mouse or finger, type it, or upload an image.
4. Download the signed file — or better, let the tool send it to the other party.

That's it. No printer, no scanner, no app install.

Why the scan-and-email habit is worse, not safer

A lot of people still believe the printed signature is the "real" one. In the EU the opposite is closer to the truth.

A photographed signature is a picture of a squiggle. It proves nothing about who signed, when, or whether the document changed afterwards. Anyone can crop a signature out of one PDF and paste it into another.

A properly captured electronic signature carries an evidence trail:

• who signed (email address, and the link they used)
• when they signed, to the second
• the IP address and browser they signed from
• a fingerprint of the document, so any later edit is detectable

Under eIDAS, a simple electronic signature is admissible as evidence across the EU — a court can't dismiss it just because it's electronic. What decides a dispute is the evidence behind the signature, and that's exactly what the scan doesn't have.

The one thing free tools usually skip

Most free PDF signing tools give you a picture of a signature on a page and stop there. What's missing is the certificate of completion — the separate record listing every signer, their timestamps, IP addresses, and a hash of the signed file.

That document is the whole point. Without it you have a decorated PDF. With it you have something you can hand to a lawyer.

When you're picking a free tool, the question isn't "can it draw my signature". It's:

□ Does it record a timestamp and IP per signer?
□ Does it produce a completion certificate, not just a stamped PDF?
□ Does it hash the document so tampering is detectable?
□ Can the other party sign without creating an account?
□ Do I get the sealed result emailed to me automatically?

That last one matters more than it sounds. If the other side has to register for an account before they can sign, a meaningful share of them simply won't.

Signing it yourself vs sending it to someone else

These are different jobs and free tools often only do the first.

Signing something sent to you is the easy case: open, sign, return.

Getting someone else to sign is where deals stall. You need to place fields for them, send a private link, and — because people forget — chase them. Nothing kills a signature faster than a document sitting unopened in an inbox for three weeks. Automatic reminders on a sensible cadence recover a surprising number of stalled documents.

We wrote about that side of it in how to send a document for signature.

What about "digital signatures" and certificates?

You'll see the term qualified electronic signature (QES). That's the top tier: backed by a certificate issued by a trust service provider, usually requiring identity verification and sometimes a card reader.

You need it for a narrow set of things — certain public tenders, notarial acts, some employment formalities in specific countries. For a freelance contract, an NDA, a quote approval or a statement of work, a simple electronic signature with a solid audit trail is both legal and normal.

Don't pay for QES because a sales page made you nervous. Check whether your specific document type actually requires it first.

Where Eurobillr fits

Eurobillr includes e-signatures rather than selling them separately: upload any PDF, drag signature, date, initials, text and checkbox fields onto it, set a signing order, and send. Signers get a private link — no account needed — and can draw, type, upload or reuse a saved signature. Everyone receives the sealed PDFs plus a Certificate of Completion with a SHA-256 fingerprint, and you can void a document with a visible watermark if something changes.

Every paid plan includes a monthly envelope allowance, and the free plan includes two per month — enough to sign the occasional contract without paying for a dedicated tool.

See the e-signature overview for the full picture.