The Complete E-Signature Guide
Everything you need to know about electronic signatures — what they are, how they work, whether they are legally binding, and how to sign any document online in minutes.
Sign documents free — no account needed to sign →Quick answer: An electronic signature is any digital indication that a person intends to agree to the contents of a document. E-signatures are legally valid in most countries — including under the ESIGN Act (US), eIDAS (EU), and similar laws worldwide. Most commercial contracts, employment agreements, and service agreements can be signed electronically.
E-Signature Articles
Plain-English guides to electronic signatures, legal validity, and signing documents online.
5 min read
What Is an Electronic Signature? Definition, Types and Legal Validity
An electronic signature is a legally recognised digital equivalent of a handwritten signature. Here is everything you need to know about how they work and when they are legally binding.
4 min read
How to Sign a Document Online: A Step-by-Step Guide
Signing a document online takes less than two minutes. Upload your PDF, place signature fields, share a link — your recipient signs on any device without creating an account.
5 min read
Are Electronic Signatures Legally Binding?
Electronic signatures are legally binding in most countries. Here is a plain-English breakdown of the legal frameworks that recognise e-signatures and what makes them enforceable.
4 min read
Electronic Signature vs Digital Signature: What Is the Difference?
People often use "e-signature" and "digital signature" interchangeably — but they mean different things. Here is a clear breakdown of the difference and which one your documents need.
5 min read
Best Free Electronic Signature Tools in 2026
Several e-signature platforms offer free plans — but free tiers vary widely in document limits, audit trail quality, and legal compliance. Here is a clear comparison.
4 min read
Standard vs Advanced Electronic Signature: Which Do You Need?
Standard electronic signatures are sufficient for the vast majority of commercial documents. Advanced electronic signatures (AES) use PKI certificates and are required only for specific high-risk use cases.
Frequently asked questions
What is an electronic signature?
An electronic signature is any digital indication that a person intends to agree to the contents of a document. This can be a typed name, a drawn signature, a checkbox, or a one-time passcode confirmation. Electronic signatures are legally valid in most countries under laws such as the ESIGN Act (US), eIDAS Regulation (EU), and equivalent legislation in over 60 jurisdictions worldwide.
Are electronic signatures legally binding?
Yes. Electronic signatures are legally binding in most countries. Under the US ESIGN Act (2000) and the EU eIDAS Regulation (2014), an e-signature cannot be denied legal effect solely because it is in electronic form. To be enforceable, the signature must demonstrate the signer's intent and consent, be linked to the document, and have a reliable audit trail.
What is the difference between an electronic signature and a digital signature?
An electronic signature is the broad legal concept — any digital method of indicating consent. A digital signature is a specific technical implementation using cryptographic PKI certificates from a Certificate Authority. Most business contracts (NDAs, service agreements, employment contracts) only require an electronic signature. Digital signatures are used for regulated documents requiring the highest assurance of signer identity.
Do signers need to create an account to sign a document?
No. If someone sends you a signing link, you can open it in any browser on any device and sign without creating an account or downloading an app. Most e-signature platforms, including SignZA, are designed so that signing is always free and frictionless for recipients.
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