E-Signature vs Digital Signature: the Difference

The short answer An electronic signature (e-signature) is a broad legal concept: any electronic way of showing that a person agreed to a document. Typing your name, clicking I accept, or signing with your finger on a screen can all be electronic signatures. A digital signature is a specific technology that sits underneath some electronic signatures. It uses cryptography, specifically public key infrastructure (PKI) and a digital certificate, to bind the signature to the signer and to seal the document so any later change is detectable. So every digital signature is a kind of electronic signature, but not every electronic signature is a digital signature. One is a legal category; the other is a technical method that gives that category strong proof. ## What an electronic signature is Electronic signature is defined by intent and function, not by technology. The law in most major countries asks two questions: did the person intend to sign, and is the method reliable enough for the purpose. If yes, the electronic signature is generally valid. Examples of electronic signatures: - Typing your name into a signature box

• Clicking an I agree or Accept button
• Drawing your signature with a mouse or finger
• Applying a signature through a signing platform These are easy and fast. Their weakness is proof: on their own, a typed name does not strongly prove who typed it or whether the document was altered afterwards. Signing platforms add an audit trail (time, email, IP address) to strengthen that evidence. ## What a digital signature is A digital signature is a cryptographic process. In simple terms: - The signer holds a private key, kept secret, and a matching public key, shared openly, issued inside a digital certificate by a trusted certifying authority.
• When the signer signs, software creates a unique mathematical value (a hash) of the document and encrypts it with the private key.
• Anyone can use the public key to verify two things: that the signer, and only the holder of that private key, signed it, and that the document has not changed since, because any change breaks the hash. This gives three properties that a plain electronic signature does not guarantee on its own: strong authentication of the signer, integrity of the document, and non-repudiation, meaning the signer cannot easily deny having signed. A digital signature is therefore a technology you can use to create a legally strong electronic signature. It is the engine; electronic signature is the legal label. ## How the difference maps to the law ### India India draws this distinction directly in the Information Technology Act, 2000. The Act originally recognised digital signatures (the PKI and certificate based method), and a 2008 amendment broadened this to electronic signatures more generally, provided the technique is reliable and specified in the Second Schedule. In practice two methods are widely used: a digital signature certificate (DSC) issued by a licensed certifying authority, and Aadhaar based eSign, an online service that issues a certificate after the signer is authenticated against Aadhaar. Both are forms of electronic signature under the Act. Certain documents are excluded from electronic execution under the First Schedule, including negotiable instruments other than cheques, powers of attorney, trusts, wills and, historically, some property conveyances, so confirm the current position before relying on an e-signature for those. ### European Union The EU eIDAS Regulation (Regulation (EU) No 910/2014) defines three tiers: a simple electronic signature, an advanced electronic signature (uniquely linked to the signer and able to detect later changes), and a qualified electronic signature (an advanced signature made with a qualified device and certificate). A qualified electronic signature has the same legal effect as a handwritten signature across the EU. The advanced and qualified tiers are, in technical terms, digital signatures. ### United States US federal law under the ESIGN Act (2000), and state law under the Uniform Electronic Transactions Act (UETA), take a broad, technology-neutral approach. An electronic signature is valid if the person intended to sign and the parties agreed to transact electronically, without requiring a specific cryptographic method. Digital signatures are allowed but not mandatory. ### United Kingdom The UK recognises electronic signatures through the Electronic Communications Act 2000 and a retained, amended version of the eIDAS rules. The Law Commission confirmed in 2019 that an electronic signature is generally capable of executing a document where the signer intends to authenticate it. As in the EU, the advanced and qualified concepts correspond to digital signature technology. ## Which one do you need For most everyday commercial contracts, a standard electronic signature through a reputable platform, with a solid audit trail, is legally sufficient and practical. Reach for a digital signature (DSC, Aadhaar eSign in India, or a qualified signature in the EU) when: - The law or a regulator requires it for that document type or filing.
• You are dealing with government or statutory filings that mandate a certified signature.
• The matter is high value or high risk and you want the strongest possible proof of signer and integrity.
• A counterparty or sector standard specifically asks for it. The rule of thumb: match the method to the risk and the legal requirement. Do not use a bare typed name on a high-stakes or regulated document, and do not force a certificate-based signature where a simple one is clearly enough. ## A quick comparison | | Electronic signature | Digital signature | | --- | --- | --- | | What it is | A legal category: any electronic sign of intent to sign | A cryptographic method (PKI plus certificate) | | Technology | Not specified | Public key infrastructure, hashing, certificate | | Proof of signer | Varies; relies on audit trail | Strong; tied to a certified key | | Document integrity | Not inherent | Built in; tampering is detectable | | Examples | Typed name, click to accept, drawn signature | DSC, Aadhaar eSign, EU qualified signature | | Relationship | The broad category | A strong way to create one | ## Signing inside one workspace In real contract work the signature is the last step of a longer process: draft, review, agree, sign, then track what was signed. Treating signing as a separate tool from the rest is what leaves teams unsure which method a document needs and whether the right one was used. A single workspace keeps the method matched to the document: draft and review the contract, then send it for electronic signing and, where required, stamping, in the same place, tuned to how your company contracts. Adira is built on that single-workspace idea, with e-signing embedded alongside drafting and review so the choice of signature method stays connected to the document and its risk. The underlying point stands whatever you use: electronic signature is the legal category, digital signature is the strong technical method, and you choose based on the law and the stakes. Legal positions summarised here are general and current as of 2026, not legal advice, so verify the rule for your document type and country before you rely on it.