Sign PDF: Sign Documents Online with Free E-Signature
Add electronic signatures to contracts, agreements, and forms by drawing on canvas or uploading a signature stamp.
Privacy First: 100% Client-Side Processing
Processed in your browser. Files are never uploaded.
How to Use the Sign PDF: Draw & Add Electronic Signatures Online
- 1Upload the PDF document requiring a signature.
- 2Draw your signature on the digital signature pad.
- 3Drag and resize the signature onto the signature line.
- 4Download your signed PDF.
Formula & How It Works
Vector PNG Signature Stamping
Exports drawn signature canvas as transparent PNG and embeds into PDF page vector stream.
Worked Examples
Signing a Lease Agreement
Input: lease.pdf + drawn signature
Explanation: Embeds digital signature cleanly on the signature line.
Frequently Asked Questions
Is this electronic signature legally binding?▼
Under the US ESIGN Act and EU eIDAS regulations, electronic signatures placed with intent to sign are legally recognized for most contracts.
Quick Reference & Conversion Table
| Signature Method | Device | Appearance |
|---|---|---|
| Draw Signature | Mouse / Touchscreen | Authentic handwritten stroke |
| Type Signature | Keyboard | Stylized script calligraphy font |
| Upload Image | Scanned stamp | Exact copy of ink signature |
⚠️ Common Pitfalls to Avoid
- •Signing with low-contrast colors; black or dark blue ink is standard for legal documents.
💡 Practical Real-World Uses
- •Signing employment offer letters, NDA agreements, and rental leases.
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