E-Signature Legal Validity

Typeflow's electronic signatures are legally binding and enforceable. This article explains why and how we ensure compliance with major e-signature laws worldwide.

Yes. Electronic signatures have been legally recognized for over 20 years in most countries.

The key principle is simple: a signature doesn't have to be ink on paper to be valid. What matters is:

  1. Intent to sign - The signer meant to sign the document

  2. Consent - The signer agreed to use electronic means

  3. Association - The signature is linked to the document

  4. Record retention - The signed document can be stored and reproduced

Typeflow ensures all four requirements are met for every signature.


Laws We Comply With

United States

ESIGN Act (2000)

Electronic Signatures in Global and National Commerce Act

  • Federal law covering all 50 states

  • Electronic signatures have the same legal weight as handwritten signatures

  • Electronic records satisfy any law requiring written records

UETA (1999)

Uniform Electronic Transactions Act

  • Adopted by 49 states (all except New York, which has similar laws)

  • Provides state-level framework for e-signatures

  • Confirms electronic records and signatures are legally valid

European Union

eIDAS Regulation (2014)

Electronic Identification, Authentication and Trust Services

  • Applies to all 27 EU member states

  • Defines three levels of electronic signatures:

Level Description Typeflow
Simple Electronic Signature (SES) Basic e-signature with signer identification ✅ Supported
Advanced Electronic Signature (AES) Uniquely linked to signer, capable of detecting changes ✅ Supported
Qualified Electronic Signature (QES) Requires certified device and qualified certificate ❌ Not supported

Typeflow provides Simple Electronic Signatures which are legally valid for most business documents in the EU.

Other Jurisdictions

Country/Region Law Status
United Kingdom Electronic Communications Act 2000 ✅ Valid
Canada PIPEDA, provincial laws ✅ Valid
Australia Electronic Transactions Act 1999 ✅ Valid
Singapore Electronic Transactions Act ✅ Valid
Japan Act on Electronic Signatures ✅ Valid

We capture comprehensive evidence for every signature to prove authenticity and intent.

1. Signer Identification

For each signer, we record:

Data Purpose
Email address Identifies who was invited to sign
Name As provided by sender or entered by signer
Unique signing link One-time token tied to specific signer

2. Intent to Sign

We capture explicit actions showing the signer intended to sign:

  • Clicked signing link - Active choice to open document

  • Completed each field - Deliberate action for every signature/field

  • Clicked "Complete Signing" - Final confirmation of intent

3. Audit Trail

Every action is logged with timestamp and metadata:

Event Data Captured
Document viewed Timestamp, IP address, browser, location
Field completed Which field, value entered, timestamp
Signing completed Final timestamp, total duration

4. Document Integrity

We use cryptographic hashing to prove the document hasn't been altered:

Hash Purpose
Original document SHA-256 Proves what document was sent for signing
Signed document SHA-256 Proves final document hasn't been modified

If even one character changes, the hash completely changes - making tampering detectable.

5. Tamper-Evident Seal

The signed PDF embeds:

  • All signatures and field values directly in the document

  • Certificate of Completion with full audit trail

  • Cannot be edited without breaking the PDF structure


Certificate of Completion

Every signed document includes a Certificate of Completion page that serves as legal evidence.

What's Included

┌─────────────────────────────────────────────────────────────┐
│                 CERTIFICATE OF COMPLETION                    │
├─────────────────────────────────────────────────────────────┤
│                                                             │
│  Document Information                                       │
│  • Document name and unique ID                              │
│  • Creation date and completion date                        │
│                                                             │
│  Signer Details (for each signer)                          │
│  • Name and email                                          │
│  • Signature image                                         │
│  • Signing timestamp                                       │
│  • IP address and geographic location                      │
│  • Browser and device information                          │
│  • Time spent viewing before signing                       │
│                                                             │
│  Document Integrity                                         │
│  • SHA-256 hash of original document                       │
│  • SHA-256 hash of signed document                         │
│                                                             │
│  Legal Statement                                            │
│  "This document was signed electronically in accordance    │
│   with the US ESIGN Act, UETA, and EU eIDAS Regulation"    │
│                                                             │
└─────────────────────────────────────────────────────────────┘

Why This Matters

If a signature is ever disputed, the Certificate provides:

  1. Proof of identity - Who signed (email, IP, location)

  2. Proof of intent - They actively completed the signing process

  3. Proof of timing - Exact date and time of signature

  4. Proof of document state - Hash proves document wasn't altered


What Can Be Signed Electronically?

Most business and personal documents can be legally signed electronically:

Category Examples
Contracts Service agreements, NDAs, partnerships
Sales Purchase orders, quotes, invoices
HR Offer letters, onboarding forms, policies
Real Estate Lease agreements, rental applications
Finance Loan applications, account openings
Legal Consent forms, releases, settlements
Healthcare Patient consent, HIPAA authorizations

Documents That Require Handwritten Signatures

Some documents still require traditional "wet" signatures by law:

United States

  • Wills and testamentary trusts

  • Adoption and divorce papers

  • Court orders and notices

  • Utility cancellation notices

European Union

  • Family law documents (marriage, adoption)

  • Real estate transfers (in some countries)

  • Notarized documents

General Exclusions

  • Documents requiring notarization

  • Documents requiring witnesses present

  • Government-issued documents (passports, IDs)

When in doubt, consult with a legal professional for high-stakes documents.


FAQ

Is a typed signature as valid as a drawn signature?

Yes. The law doesn't distinguish between drawn and typed signatures. What matters is the intent to sign, not the visual appearance.

Do I need witnesses for e-signatures?

For most documents, no. The audit trail serves as evidence. Some specific document types may require witnesses by law.

Can e-signatures be used in court?

Yes. E-signatures are regularly admitted as evidence. The Certificate of Completion and audit trail provide the documentation needed.

Are e-signatures valid for international contracts?

Generally yes, if both parties' countries recognize e-signatures. Most developed countries do. Check specific requirements for your situation.

What if someone claims they didn't sign?

The audit trail shows their email received the link, their IP address accessed it, their browser completed the fields, and they clicked "Complete Signing". This is strong evidence of intent.

Is Typeflow compliant with GDPR?

Yes. We only collect data necessary for the signing process and legal compliance. Signer data is stored securely and can be deleted upon request.

Do you offer Qualified Electronic Signatures (QES)?

No. QES requires certified hardware devices and is typically only needed for specific regulated industries in the EU. Simple Electronic Signatures are valid for the vast majority of use cases.

Summary

Requirement How Typeflow Meets It
Signer identification Email verification, unique tokens
Intent to sign Active completion of signing process
Document integrity SHA-256 cryptographic hashing
Audit trail Comprehensive logging of all events
Record retention Secure storage, downloadable PDFs
Legal compliance ESIGN, UETA, eIDAS compliant
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