Electronic Signature vs Digital Signature

People use these two terms as if they mean the same thing — but they don't. The difference is simple once you see it: one is a legal concept, the other is a specific technology. Here's what each means and which one you actually need.

Electronic signature: the broad concept

An electronic signature (e-signature) is any electronic indication that a person intends to agree to or accept the contents of a document. That can be a typed name, a signature drawn on a touchscreen, a click of an "I agree" button, or an uploaded image of your handwritten signature. It's defined by intent, not by a particular technology — and it's the term used in laws like Saudi Arabia's Electronic Transactions Law.

Digital signature: the specific technology

A digital signature is a particular cryptographic technique — based on public-key infrastructure (PKI) — that mathematically binds a signature to a document. It uses a digital certificate to verify the signer's identity and a cryptographic seal to prove the document hasn't been altered since signing. In other words, a digital signature is one secure way to implement an electronic signature.

Quick comparison

• Electronic signature — broad legal term · proves intent to sign · backed by identity checks and an audit trail.
• Digital signature — specific technology · uses PKI and certificates · provides cryptographic proof of integrity and identity.

Which one do you need?

For the vast majority of agreements — contracts, approvals, consent forms, NDAs — a reliable electronic signature with verified identity and a tamper-evident audit trail is exactly right, and that's what iDara Sign provides. Certificate-based digital-signature technology comes into play when a regulation or counterparty specifically requires that stronger cryptographic standard.

Wondering whether your e-signatures will hold up legally? Read: Are electronic signatures legal in Saudi Arabia?