Why Sign PDFs Electronically?

Electronic signatures save time and paper:

• Contracts — Sign agreements without printing and scanning
• Forms — Complete applications with legal signature
• Approvals — Authorize documents remotely
• Invoices — Sign off on payments and purchases
• Legal documents — Notarize-ready digital signatures

Types of PDF Signatures

Simple Electronic Signature

• Image of signature placed on page
• Legally binding in most jurisdictions for basic agreements
• Easy to create and apply

Digital Signature (Advanced)

• Cryptographically secured
• Verifies signer identity
• Tamper-evident (detects modifications)
• Requires certificate

Method 1: JadePDF Sign Tool (Free)

Step 1: Upload

Go to JadePDF Sign. Drop your PDF.

Step 2: Create Signature

Draw signature:

• Use mouse or touchpad to draw
• Natural handwriting feel
• Adjustable pen thickness

Type signature:

• Enter your name
• Choose from script fonts
• Looks professional and consistent

Upload signature:

• Use scanned signature image (PNG with transparency)
• Precise placement
• Matches your real signature

Step 3: Place Signature

• Drag to position on page
• Resize as needed
• Rotate if necessary
• Place on specific page or all pages

Step 4: Add Date (Optional)

• Automatic date stamp
• Customizable format
• Position near signature

Step 5: Save

Click “Sign PDF.” Processing via pdf-lib WASM in browser.

Step 6: Download

Signed PDF downloads immediately.

Signature Best Practices

1. Use consistent signature — Same style across all documents
2. Position clearly — Place where signature is expected
3. Include date — Makes document legally stronger
4. Save original — Keep unsigned copy for records
5. Check final — Verify signature looks correct before sharing

Legal Validity

Electronic signatures are legally binding in:

• ✅ United States (ESIGN Act, UETA)
• ✅ European Union (eIDAS regulation)
• ✅ United Kingdom (Electronic Communications Act)
• ✅ Canada (PIPEDA)
• ✅ Australia (Electronic Transactions Act)
• ✅ Most other countries

Requirements for validity:

• Intent to sign
• Consent to electronic process
• Association of signature with document
• Record retention

When to Use Digital Signatures (vs. Simple)

Simple electronic signature:

• Internal approvals
• Low-risk contracts
• Forms and applications
• General business documents

Digital signature (certificate-based):

• High-value contracts
• Government filings
• Financial transactions
• Documents requiring non-repudiation

Privacy: Is Online PDF Signing Safe?

Most tools upload your documents and signature to servers.

JadePDF signs in your browser. Your contracts and signature image never leave your device.

FAQ

Are electronic signatures legally binding? Yes, in most jurisdictions for most purposes. Consult legal counsel for high-stakes documents.

Can I remove a signature after adding? Not from the signed PDF (by design). Keep original unsigned copy.

What if I need multiple signatures? Add multiple signature fields. Each signer can add their signature.

Can I sign on mobile? Yes. Touchscreen devices work great for drawing signatures.

Does signing change PDF content? No. Only adds signature annotation. Original content unchanged.

Try It Now

Sign PDF free — add electronic signatures, no signup, no server uploads.