Electronic Signatures: Everything You Need to Know in 2026

Electronic signatures have transformed how we sign documents. Gone are the days of printing, signing with a pen, scanning, and sending back documents. Today, you can sign any PDF in seconds from any device.

What is an Electronic Signature?

An electronic signature (or e-signature) is a digital indication of a person's intent to agree to or approve the content of a document. It can be as simple as typing your name, drawing your signature with a mouse, or using a cryptographic digital signature.

Are Electronic Signatures Legal?

Yes! Electronic signatures are legally binding in most countries:

• United States: The ESIGN Act (2000) and UETA give electronic signatures the same legal standing as handwritten signatures.
• European Union: The eIDAS Regulation provides a legal framework for electronic signatures across all EU member states.
• United Kingdom: The Electronic Communications Act 2000 recognizes electronic signatures.
• Canada: PIPEDA and provincial laws recognize electronic signatures.
• Australia: The Electronic Transactions Act 1999 validates electronic signatures.

Types of Electronic Signatures

1. Simple Electronic Signatures (SES)

The most basic form — typing your name, clicking "I agree", or drawing a signature with your finger. Used for low-risk documents like internal approvals and general correspondence.

2. Advanced Electronic Signatures (AES)

Uniquely linked to the signer, capable of identifying them, and created using data under the signer's sole control. Used for contracts and compliance documents.

3. Qualified Electronic Signatures (QES)

The most secure type, created using a qualified signature creation device and based on a qualified certificate. Has the legal equivalent of a handwritten signature in the EU.

How to Sign a PDF Online

With SublimePDF, signing a PDF takes just three steps:

1. Upload your PDF to the Sign PDF tool.
2. Create your signature by drawing, typing, or uploading an image.
3. Place and download — click where you want the signature, then download your signed document.

Best Practices for Electronic Signatures

1. Use a consistent signature: Create a signature that you use consistently across documents.
2. Include the date: Always add the signing date for a clear record.
3. Keep copies: Save a copy of every document you sign for your records.
4. Use secure tools: Choose tools that process documents locally (like SublimePDF) to protect your privacy.
5. Verify before signing: Always read the entire document carefully before adding your signature.

Electronic vs Digital Signatures

Many people use these terms interchangeably, but they're different:

| Feature | Electronic Signature | Digital Signature | |---------|---------------------|-------------------| | What it is | Any electronic mark of consent | Cryptographic verification | | Security | Varies | Very high | | Verification | Limited | Tamper-proof | | Cost | Usually free | Requires certificate | | Best for | General documents | High-security needs |

Learn more in our guide: Digital vs Electronic Signatures.

Industries Using E-Signatures

• Real estate: Closing documents, lease agreements
• Legal: Contracts, NDAs, retainer agreements
• Healthcare: Patient consent, HIPAA forms
• HR: Offer letters, onboarding documents

Conclusion

Electronic signatures are not just convenient — they're legally valid, environmentally friendly, and accessible from any device. With SublimePDF's free online signing tool, you can sign any PDF document in seconds without installing any software.