What's the difference between an electronic signature and a digital signature?

An electronic signature is a broad legal term for any electronic mark or action showing intent to sign a document.

An digital signature is a specific type of electronic signature that uses cryptography to protect the signature and verify who signed it.

Quick difference

• Electronic signature: can be as simple as typing your name, checking a box, clicking “I agree,” or drawing a signature on a screen.
• Digital signature: uses a technical process with encryption and certificates to ensure:
  • the signer’s identity,
  • the document hasn’t been altered,
  • the signature can be verified.

In short

• All digital signatures are electronic signatures
• Not all electronic signatures are digital signatures

Example

• Clicking “Accept Terms” = electronic signature
• Signing a PDF with a certificate-based cryptographic signature = digital signature

If you want, I can also explain how they differ in legal validity or security.