How to Add Signature to PDF Documents: Complete 2026 Guide

Adding signatures to PDFs is essential for contracts, agreements, and official documents. Gone are the days of printing, signing, and scanning. Here's how to add your signature to any PDF directly in your browser.

Are Electronic Signatures Legal?

Yes! Electronic signatures are legally binding in most countries:

• United States: ESIGN Act (2000) and UETA
• European Union: eIDAS Regulation
• United Kingdom: Electronic Communications Act 2000
• Canada: PIPEDA and provincial laws
• Australia: Electronic Transactions Act 1999

According to DocuSign research, over 1 billion users have signed documents electronically.

Types of Electronic Signatures

Understanding the difference helps choose the right method:

Type	Description	Use Case
Simple e-signature	Typed name or drawn signature	Internal documents, low-risk agreements
Advanced e-signature	Linked to signer, detects changes	Business contracts
Qualified e-signature	Certificate-based, legally equivalent to handwritten	High-value contracts, government documents

Our PDF Editor provides simple electronic signatures, suitable for most everyday signing needs.

How to Add Signature to PDF Online (Free)

Step-by-Step Instructions:

1. Open Percime PDF Editor
2. Upload your PDF document
3. Select the Signature tool from the toolbar
4. Create your signature by drawing with your mouse or finger
5. Click on the document where you want to place it
6. Resize and position your signature as needed
7. Save the signed PDF

Signature Customization Options:

• Color: Black, blue, or custom colors
• Size: Adjust to fit signature lines
• Position: Drag to exact location

Best Practices for PDF Signatures

1. Create a Consistent Signature

Use the same signature style for all documents. This creates a recognizable pattern that:

• Builds authenticity
• Matches your handwritten signature
• Looks professional

2. Position Correctly

Place your signature:

• On designated signature lines
• Below printed name if required
• Away from existing text

3. Add Date and Initials

Many documents require:

• Date signed: Use the text tool to add the date
• Initials: For multi-page documents, initial each page

Documents Commonly Requiring Signatures

• Employment contracts
• Lease agreements
• NDAs and confidentiality agreements
• Purchase orders
• Consent forms
• Tax documents
• School permission slips
• Insurance claims

Signature Security Tips

When signing PDFs electronically:

1. Verify the document before signing — read everything
2. Use secure connections (HTTPS) when uploading sensitive documents
3. Keep copies of signed documents for your records
4. Check recipient identity before sending signed contracts

Mobile Signing

Sign PDFs on your phone or tablet:

• Touch devices: Draw your signature with your finger
• Stylus support: Use Apple Pencil or S Pen for precision
• Works in browser: No app installation needed

Alternatives to Drawing Signatures

If you prefer not to draw:

1. Type your name: Use a script font for a signature look
2. Upload image: Take a photo of your handwritten signature
3. Use initials: For less formal documents

Combining Signatures with Other Edits

After signing, you might need to:

• Fill in form fields with text
• Add a stamp like "Approved" or "Confidential"
• Merge with other documents into a complete package

Conclusion

Adding signatures to PDFs is simple, legal, and saves time. No more printing, signing, scanning, and emailing. Just:

1. Open your PDF in our free editor
2. Draw your signature
3. Position and save

Ready to sign? Open PDF Editor

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Related: Edit PDF Files Online | Merge PDF Documents