Digital Signatures

Sign PDF documents electronically in under 2 minutes. Legally valid in the US, EU, UK, India, and 80+ countries. No printing, no scanning, no courier.

Sign PDF Free →
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Step 1: Upload

Click or drag your PDF to the Sign PDF tool. Supports any PDF up to any size.

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Step 2: Create Signature

Type your name in cursive font, or draw freehand with mouse or touchscreen.

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Step 3: Position & Download

Drag your signature to the correct line on the page. Download the signed PDF in seconds.

Legal Recognition by Country

JurisdictionLawValid
United StatesESIGN Act + UETA
European UnioneIDAS Regulation
United KingdomElectronic Comms Act
IndiaIT Act 2000
AustraliaElectronic Trans Act
CanadaPIPEDA + UECA
SingaporeETA 2010
UAEFederal Law

Electronic vs Certified Signatures

Visual Electronic Signature (PDFFlow)

Legally valid for most commercial agreements. No audit trail. Best for: contracts, NDAs, leases, freelance agreements, employment offers.

Use PDFFlow — free, instant

Certified Digital Signature (DocuSign/Adobe)

Creates timestamped audit trail with identity verification. Required for: financial instruments, regulated industries, court filings.

Use DocuSign (free tier: 3/month)

Frequently Asked Questions

Are electronic signatures on PDFs legally binding?+
Yes. Under the US ESIGN Act (2000), EU eIDAS Regulation, UK Electronic Communications Act 2000, India IT Act 2000, and equivalent legislation in 80+ countries, electronic signatures have the same legal force as handwritten signatures for most commercial documents. The key requirements are demonstrable intent to sign and identification of the signer.
What documents can be signed electronically?+
Most commercial documents accept electronic signatures: service contracts, NDAs, employment agreements, lease agreements, freelance contracts, sales agreements, consent forms, and purchase orders. Documents typically excluded include wills, codicils, court orders, and documents requiring notarization under specific jurisdictional rules.
What is the difference between electronic and digital signatures?+
An electronic signature is any digital representation of intent to sign — a typed name, drawn signature, or even a checkbox. A digital signature is a specific cryptographic mechanism that embeds a verifiable certificate with timestamp. PDFFlow creates electronic signatures. Certified digital signatures (with audit trail) require services like DocuSign or Adobe Sign.
Can I sign a PDF on my iPhone free?+
Yes. Open Safari on iPhone, go to pdfflow.live, and use Sign PDF. The drawing canvas supports finger signature on touchscreen. Upload your document, draw or type your signature, position it on the signature line, and download. No app required — works entirely in Safari.
How do I sign a PDF without printing?+
Use PDFFlow Sign PDF. Upload the PDF, choose the Type tab to type your name in cursive font or the Draw tab to draw your signature with mouse or finger. Drag the signature to the correct position on the page. Download the signed PDF. The process takes under two minutes.