Add Signature to PDF Online Free
Sign PDF documents online in seconds. Upload your signature image and place it exactly where you need it. No software download required.
✓ 3 free signatures per day ✓ No registration ✓ No watermarks
Your Signature
Upload your own handwritten signature image. PNG with transparency works best.
Click to Sign
Click anywhere on the PDF to place your signature. Resize and adjust as needed.
Legally Binding
Electronic signatures are legally valid in most countries. Secure and compliant.
What Can You Sign?
Contracts & Agreements
Business contracts, NDAs, service agreements
Legal Documents
Affidavits, declarations, court filings
Forms & Applications
Tax forms, applications, registrations
Invoices & Receipts
Business invoices, payment confirmations
How to Add Signature to PDF
Upload PDF
Select your document
Add Signature
Upload signature image
Place & Resize
Click to position
Download
Get signed PDF
Tips for Best Results
📝 Use PNG with transparency
Signature blends naturally with document background
✍️ Sign on white paper
Take a photo and remove background for best quality
🔲 Keep it simple
Clean, dark signature on light background works best
📐 Right size matters
Resize to match signature line on your document
Frequently Asked Questions
Is an electronic signature legally valid?
Yes! Electronic signatures are legally binding in the US (ESIGN Act), EU (eIDAS), and most countries worldwide.
How do I create a signature image?
Sign on white paper, take a photo, and optionally remove the background. Or use our built-in signature generator.
Can I add multiple signatures?
Yes! You can add signatures to multiple pages and different locations within the same document.
Is my document secure?
Absolutely. All uploads are encrypted, and files are automatically deleted after processing. We never store your documents.
Ready to Sign Your PDF?
Free, fast, and legally valid. No registration required.
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