How to sign a contract without printing it

The print-sign-scan loop exists because nobody told us the obvious: a signature on a PDF is just an image placed on the page. That is exactly what a scan produces, only with a detour through a printer and a crooked photo.

Sign it in the browser

1. Open Sign a PDF and drop the contract.
2. Draw your signature with the mouse, or on a phone with your finger — it is easier than it sounds. Already have a photo of your signature on white paper? Upload it and the background is removed automatically.
3. Click on the page where the signature belongs, size it, download the signed PDF.

The document never leaves your device — the PDF is opened, modified and saved by your browser, which matters when the thing you are signing is a contract.

Which signatures actually count

• A drawn or scanned signature (what this tool produces) is a simple electronic signature. It is what the vast majority of commercial contracts, NDAs and internal approvals accept, and it is legally recognised under eIDAS in the EU and ESIGN in the US.
• An advanced or qualified signature (QES) is cryptographic, tied to your verified identity through a certificate. Some things require it: property transactions, certain court filings, public procurement in several countries. No browser tool can issue one — you need a provider and usually an ID check.

If a document does not say it needs a qualified signature, a drawn one is what everyone is actually using.

After signing

• Protect the PDF with a password before emailing it, especially if it carries bank details or personal data.
• Compress it if the scan-heavy original is too heavy to send.

Keep the unsigned original. Signing produces a new file; the tool never overwrites your copy.