Electronic vs Digital Signatures: What's the Difference?

If you've searched for a way to get documents signed online, you've seen these terms used interchangeably. They mean different things. The distinction matters for waivers and consent forms.

An electronic signature is the broad umbrella term. It refers to any electronic indication of intent to agree: typing your name, drawing with a finger, clicking "I Agree," or pasting an image of your signature.

The ESIGN Act and UETA are intentionally technology-neutral — they don't prescribe how an e-signature must work, only that the signer intended to sign and the signature is linked to the document.

A digital signature is a specific type of electronic signature using cryptographic technology (PKI — Public Key Infrastructure). The signer has a private key and public key. The private key creates an encrypted hash of the document. Anyone with the public key can verify the signature is authentic and the document hasn't been altered. A Certificate Authority (CA) issues certificates linking keys to identities.

• Scope: E-signature is the broad category; digital signature is a subset
• Technology: E-signatures can use any method; digital signatures use PKI cryptography
• Tamper detection: E-signatures alone don't detect modifications; digital signatures do
• Identity verification: E-signatures may or may not verify identity; digital signatures use CA certificates
• Legal validity: Both valid under ESIGN Act. Digital signatures carry stronger evidentiary weight.
• Cost: Basic e-signatures are simple and cheap. Full PKI can be more complex.

The ESIGN Act established that electronic signatures cannot be denied legal effect because they are electronic. A drawn signature on a phone is legally valid. A typed name is valid. A click-to-agree is valid — as long as the signer intended to sign.

Enforceability depends on proving: the signer saw the full document, took a clear signing action, the document hasn't been altered, and you can identify who signed and when. Digital signatures make this easier to prove. See whether digital consent forms are legally binding.

You don't need full PKI certificates for waivers. You need an e-signature process that includes:

• A clear, readable document shown before signing
• An unambiguous signing action
• A tamper-proof record
• A verification method

Signew takes this approach — combining e-signature simplicity with digital signature security. Tamper-proof PDFs with verification links, without PKI complexity.

• "Digital signatures are more legal" — Both equally valid under ESIGN. Digital signatures are easier to defend in disputes.
• "I need a Certificate Authority" — Not for waivers. CA certificates are for regulated government/financial documents.
• "A photo of my signature is a digital signature" — It's an e-signature with zero cryptographic protection.
• "Signed online = automatically tamper-proof" — Many basic tools produce editable PDFs. True protection requires cryptographic hashing or a verification system.

For tool recommendations, see best digital waiver tools.

Electronic signature is the category. Digital signature is the high-security subset. For waivers, you want the simplicity of an e-signature with the security of digital signature technology. Learn how to get waivers signed online with a step-by-step walkthrough.