Sign PDF - Add Electronic Signature Free
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Supported formats: .pdf, application/pdf
Sign PDF Online Free - Add Electronic Signature to PDF Documents
Add your signature to PDF documents online for free using three convenient methods: draw with mouse or touch, upload a signature image, or type your name with stylish fonts. Place signatures precisely with drag-and-drop positioning and real-time preview. Perfect for contracts, forms, agreements, and official documents. All processing happens locally in your browser—your documents never leave your device.
3 Signing Methods • Drag & Drop Positioning • Real-Time Preview • 100% Private
How to Sign a PDF
Add your signature to any PDF document in 4 simple steps
Upload your PDF document by dragging and dropping or clicking to browse
Supports single PDF files up to 100MB. Preview pages before signing.
Create your signature by drawing, uploading an image, or typing your name
Draw with mouse/touchscreen, upload a PNG/JPG signature image, or choose from signature fonts.
Click on the PDF to place your signature exactly where you want it
Drag to reposition, use handles to resize. Add multiple signatures to different locations.
Click 'Sign PDF' and download your signed document
Choose to sign current page, all pages, or a specific page range. Download instantly.
Why Choose PDFyogi PDF Signing Tool?
The easiest way to add signatures to PDF documents online
Three Flexible Signing Methods
Create signatures your way: draw with mouse or touchscreen for a natural look, upload an existing signature image, or type your name and convert it to a stylish signature font. Switch methods anytime.
Precise Drag-and-Drop Positioning
Click anywhere on the PDF to place your signature. Drag to reposition, use corner handles to resize. Real-time preview shows exactly how your signature will appear on the final document.
100% Browser-Based Privacy
Your PDF documents and signatures never leave your device. All processing happens locally in your browser using WebAssembly. We cannot see your documents or signatures.
Sign Multiple Pages at Once
Apply your signature to the current page, all pages, or a custom page range. Place signatures in different positions on different pages for complete flexibility.
Professional-Quality Output
Signatures are embedded at high resolution with adjustable opacity, size, and rotation. The output PDF maintains original quality while adding your professional signature.
Completely Free Forever
No subscription, no limits, no registration required. Sign unlimited PDFs with full features at no cost. No watermarks added to your documents.
PDF Signing Use Cases
Common scenarios where electronic signatures save time
Contracts and Agreements
Sign business contracts, rental agreements, and service agreements without printing. Add your signature and return documents electronically.
Example: Sign a freelance contract before sending to client
Forms and Applications
Complete and sign application forms, consent forms, and registration documents. Place your signature in the designated signature field.
Example: Sign a job application or school enrollment form
Legal Documents
Sign affidavits, declarations, and legal correspondence. Add dated signatures to official documents that require your acknowledgment.
Example: Sign a power of attorney or legal declaration
Approval Workflows
Sign off on proposals, invoices, and approval documents. Add your signature to indicate review and authorization.
Example: Approve a budget proposal or purchase order
Personal Documents
Sign permission slips, medical forms, and personal correspondence. Handle family paperwork without visiting offices.
Example: Sign a school permission slip for your child
Remote Work Documentation
Sign employment documents, timesheets, and HR forms while working remotely. Complete onboarding paperwork from anywhere.
Example: Sign remote work agreement and policy acknowledgments
Sign PDF on Any Platform
Step-by-step guides for adding signatures on every device
Sign PDF on Windows
Works in Chrome, Firefox, and Edge on Windows 10/11. Draw signatures with mouse or touchscreen.
- Open PDFyogi in any modern browser
- Upload your PDF and create your signature
- Click to place signature on the document
- Download your signed PDF
Sign PDF on Mac
Best experience in Safari or Chrome on macOS. Use trackpad or mouse for drawing signatures.
- Open PDFyogi in Safari or Chrome
- Select PDF and create signature using trackpad
- Position signature precisely with drag-and-drop
- Export signed PDF to your preferred location
Sign PDF on Linux
Works on all Linux distributions with Firefox or Chrome. Full signature functionality supported.
- Open PDFyogi in Firefox or Chrome
- Upload PDF and draw or type signature
- Place and resize signature as needed
- Download the signed document
Sign PDF on iPhone & iPad
Full touch support in Safari on iOS 14+. Draw signatures naturally with your finger or Apple Pencil.
- Open PDFyogi in Safari on your iPhone/iPad
- Select PDF from Files and draw signature with finger
- Tap to place signature, pinch to resize
- Save signed PDF to Files or share directly
Sign PDF on Android
Works in Chrome on Android devices. Touch support for natural signature drawing.
- Open PDFyogi in Chrome on Android
- Select PDF and draw signature with finger
- Tap to place, drag to reposition
- Download or share the signed PDF
PDFyogi vs Other PDF Signing Tools
See how we compare to popular electronic signature solutions
| Feature | PDFyogi | Adobe Acrobat | DocuSign | Smallpdf |
|---|---|---|---|---|
| Price | Free | $14.99/mo | $10/mo | Free* |
| Privacy (No Upload) | ✓ Full | ✓ Desktop app | ✗ Cloud upload | ✗ Server upload |
| Draw Signature | ✓ Yes | ✓ Yes | ✓ Yes | ✓ Yes |
| Upload Signature | ✓ Yes | ✓ Yes | ✓ Yes | ✓ Yes |
| Type Signature | ✓ Yes | ✓ Yes | ✓ Yes | ✓ Yes |
| Multi-Page Signing | ✓ Yes | ✓ Yes | ✓ Yes | ○ Limited |
| Drag & Drop Placement | ✓ Yes | ✓ Yes | ✓ Yes | ✓ Yes |
| Registration Required | No | Yes | Yes | No |
| Watermarks | None | None | None (paid) | Free tier |
PDFyogi offers complete PDF signing with three methods and full positioning control, all for free. Unlike cloud-based tools, your documents stay on your device. No registration, no watermarks, no limits—just sign and download.
Advanced PDF Signing Tips
Expert techniques for professional document signing
Create a Reusable Signature Image
Sign on white paper with a black pen, photograph it in good lighting, and save as PNG with transparent background. Upload this image for consistent, professional signatures across all documents.
Optimize Signature Size
Standard signature fields are about 2 inches wide. Resize your signature to fit naturally in the designated area. Larger signatures may look unprofessional on formal documents.
Use Consistent Positioning
For multi-page documents like contracts, place signatures in the same position on each page (typically bottom right). Use the 'Sign All Pages' option for efficiency.
Add Date with Your Signature
Many documents require dated signatures. Add text with the date near your signature, or include the date when drawing your signature. Format: 'Your Name - MM/DD/YYYY'.
Review Before Signing
Always read the entire document before signing. Use the page navigation to review all pages. Your signature indicates you've read and agreed to the content.
Keep Original Documents
Save both the original unsigned PDF and your signed version. Some workflows require both versions for records. Use clear file naming like 'contract_signed.pdf'.
Technical Specifications
Detailed technical information about our PDF signing tool
Frequently Asked Questions About PDF Signing
Use PDFyogi's free online PDF signer. Upload your PDF, create your signature by drawing, uploading an image, or typing your name. Click where you want the signature, then download your signed PDF. Completely free with no registration required.
Troubleshooting PDF Signing
Common issues and how to resolve them