PDF Signature: Electronic, Digital or Visual?
“Please sign the PDF” can mean very different things. Sometimes the recipient just needs your handwritten signature on the page. Sometimes they need a certified digital signature that proves who signed. Knowing the difference saves you time – and helps you pick the right tool.
Your file stays on your device. Sehnna does not upload or store your PDF.
This tool adds a visual signature to your PDF. It is not a certified digital signature or identity verification service.
Your file stays on your device. Sehnna does not upload or store your PDF.
- No signup required
- Files stay on your device
- Browser-based conversion
- Fast download
- Free to use
Electronic signature in a PDF
“Electronic signature” is the broad term for signing a document without pen and paper. It covers a typed name, an image of your handwritten signature placed on the page, or clicking “sign” on an e-signature platform that records who signed and when.
Digital signature in a PDF
A digital signature is a special, certificate-based kind of electronic signature. It is stored cryptographically inside the PDF, shows up in the signature panel of PDF readers and reveals if the file was changed after signing. You need a signing certificate from a trust service provider to create one. Sehnna does not create digital signatures.
Visual signature: a free online signature for your PDF
A visual signature is an image of your signature placed on the page – the online equivalent of signing a printout. This is what Sehnna's Sign PDF tool adds. It is free, takes less than a minute and your PDF never leaves your device.
Which PDF signature do you need?
If you are unsure, ask the recipient which kind of signature they accept.
- Forms and applications you return yourself: a visual signature is usually enough.
- Delivery notes, timesheets and internal approvals: a visual signature is usually enough.
- Contracts with several signers or an audit trail: use an e-signature platform.
- Documents that legally require a certified or qualified signature: use a trust service provider.
Privacy: your files stay on your device
Your files stay on your device. Conversions run in your browser. Sehnna never uploads, stores or reads your documents – there is no server that receives them, no account and no email address.
- Your files stay on your device
- No signup required
- Browser-based conversion
PDF signature types – questions and answers
What is the difference between an electronic and a digital signature in a PDF?
An electronic signature is any way of signing electronically, such as an image of your signature. A digital signature is a certificate-based electronic signature that can verify the signer and detect changes to the file.
Can I add a PDF signature online for free?
Yes. With Sehnna's Sign PDF tool you can add a visual signature to a PDF for free, directly in your browser.
Does Sehnna create digital signatures?
No. This tool adds a visual signature to your PDF. It is not a certified digital signature or identity verification service.
Is a visual signature legally valid?
It depends on the document, the country and the recipient. Many everyday documents accept it, but some contracts require a certified or qualified signature. If you are unsure, ask the recipient what they need.
Is my PDF uploaded to add the signature?
No. Your file stays on your device. Sehnna does not upload or store your PDF.