Is an Electronic Signature Legal?
July 9, 2026 · By SEDI Editorial Team · 6 min read · Updated August 3, 2026
Electronic signatures are legally binding in most countries. Laws like the US ESIGN Act and the EU eIDAS regulation give electronic signatures the same legal weight as handwritten signatures for most business and personal documents. Below is what the law actually says, where it stops, and what it takes for a signed document to hold up.
Are electronic signatures legally binding?
Yes. In the United States, the ESIGN Act and UETA make electronic signatures legally binding for most transactions. In the European Union, the eIDAS regulation provides a similar legal framework. Other countries including Canada, Australia, Japan, and India have equivalent laws.
The key requirement across all jurisdictions is intent to sign. The signer must demonstrate a clear intent to authenticate the document. Clicking a checkbox, typing a name, or drawing a signature all constitute intent under the law.
Consent to do business electronically is also required. The signer must agree to receive documents and sign them in electronic form. Most online signing tools include a consent step before the signing process begins.
What types of documents cannot use electronic signatures?
Wills, family law documents (adoption, divorce), court orders, certain health insurance documents, and documents that require notarization are typically excluded from electronic signature laws. These vary by jurisdiction.
In the US, the ESIGN Act explicitly excludes wills, codicils, and testamentary trusts. Family law matters such as adoption and divorce decrees are also excluded. Court orders and official court documents generally require physical signatures.
Documents that require notarization present a special case. Some states now allow remote online notarization, where the notary verifies identity via video call and applies an electronic notary seal. Check local regulations for notarization requirements.
For most business documents, such as contracts, invoices, offer letters, non-disclosure agreements, purchase orders, and service agreements, electronic signatures are fully enforceable.
What is the difference between a simple electronic signature and a digital signature?
A simple electronic signature is an image or typed name placed on a document. A digital signature uses public key cryptography to verify the signer identity and detect tampering. Both can be binding, but digital signatures provide stronger evidence.
Simple electronic signatures include drawn signatures, typed names, or uploaded signature images. The Signature tool makes these by placing your drawn or uploaded signature onto the PDF as an image. These are suitable for most business and personal documents.
Digital signatures use a certificate-based system where a trusted authority validates the signer identity. The document is cryptographically signed, and any modification after signing invalidates the signature. Tools like DocuSign and Adobe Sign offer digital signature options with certificate validation.
For court disputes, a digital signature provides a stronger chain of evidence. A simple electronic signature may require additional evidence (emails, witness testimony) to prove authenticity. See the comparison guide for a detailed breakdown.
Do I need a special tool for legally binding electronic signatures?
No. Any tool that captures signer intent and produces a signed PDF can create a legally binding electronic signature. The legal validity comes from the signing process and intent, not from the tool itself.
What matters legally is the evidence that the signer intended to sign. This can include: a record of the signing session, IP address, timestamp, and the final signed document. The PDF signing tool guide discusses features that help establish evidence of signing.
How consent affects electronic signatures
Under laws such as the US ESIGN Act and the EU eIDAS regulation, an electronic signature is binding only when the signer consents to do business electronically. In practice, that consent is shown by choosing to sign a document in digital form and completing the signing action. Asking someone to sign an emailed PDF and having them sign it is enough in most cases.
If a party later claims they did not agree to electronic signing, the email exchange and the signed file usually settle the question. Keeping those records is more valuable than any tool feature.
What evidence should you keep
If the validity of a signature is ever challenged, the strongest evidence is a set of simple records: the final signed PDF, the date and time it was signed, the email or message that requested the signature, and any confirmation from the other side. Together these show who signed, when, and why.
You do not need a formal audit log for everyday documents. The signed file itself plus the surrounding correspondence is what a court or mediator will look at first.
Electronic signatures across borders
A signature valid in one country is generally accepted in another when the underlying law is similar. The US, the EU, and most other jurisdictions recognize electronic signatures under broadly compatible rules. The main difference is the weight given to different types: the EU's eIDAS regulation sorts signatures into three tiers and grants the top tier full cross-border recognition within the EU.
For international business, a plain electronic signature is usually accepted between companies in countries that have adopted similar laws. For transactions involving regulated or government matters, check the specific requirements of the countries involved before signing.
What about signatures on scanned PDFs
A signed scanned document works the same way as a signed digital file. When you sign a scanned PDF, the signature is placed on top of the image of the original. The resulting file is still a valid signed document, and the same intent rules apply. Scans are common because many older documents only exist on paper and are scanned for email delivery.
Common misconceptions
One misconception is that a scanned handwritten signature is more valid than a drawn digital one. In most legal systems both count as electronic signatures with the same intent requirement. Another is that a signature is invalid if the signer did not see a lawyer. Legal review and signature validity are separate things; a document can be binding even when signed without legal advice.
A third misconception is that free tools produce invalid signatures. Validity comes from the signing process and intent, not from the price of the software. A signature drawn in a free browser tool can be just as enforceable as one made with a paid service.
Frequently asked questions
Can I force someone to accept an electronic signature? No. The other party must agree to electronic signatures or at least accept the document signed that way. If they insist on a physical signature, an electronic one will not satisfy them.
Does an electronic signature need a date? The date is not required for validity, but it strengthens the record. Many tools let you add a date field next to your signature.
Are electronic signatures valid for government documents? It depends on the agency and the document. Many governments accept them, but some filings still require a physical signature or a specific certified digital signature. Check the relevant guidance.
On the practical side, the step-by-step guide shows how to create an electronic signature in the tool.
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