PDF Editing

How to Sign PDF Documents Electronically: Free Guide

Published by ContinuePDF Team ·

Electronic Signatures Are Legally Binding

In most countries, electronic signatures on PDFs are legally equivalent to handwritten signatures. The ESIGN Act (USA) and eIDAS (EU) recognize e-signatures for contracts, agreements, and official documents.

Method 1: Sign PDF Online (All Devices)

The easiest way to sign any PDF:

  1. Open the Signing Tool - Visit ContinuePDF Sign PDF
  2. Upload Your Document - Select the PDF that needs signing
  3. Create Your Signature - Draw, type, or upload an image
  4. Place and Save - Position your signature and download

Works on Mac, Windows, iPhone, and Android.

Signature Methods

Draw Your Signature

Use your mouse, trackpad, or finger (on touch devices) to draw a signature. ContinuePDF smooths your strokes for a professional look.

Type Your Name

Select from handwriting-style fonts to create a signature from typed text. Fast and consistent.

Upload Signature Image

Use a scanned image of your handwritten signature for the most authentic look.

Method 2: Sign PDFs on Mac

Using Preview

  1. Open PDF in Preview
  2. Tools > Annotate > Signature
  3. Create or select signature
  4. Click to place

Using ContinuePDF

ContinuePDF for Mac offers more signature customization and doesn't require saving signatures to your system.

Method 3: Sign PDFs on iPhone/iPad

Using Markup

  1. Open PDF in Files
  2. Tap the Markup icon
  3. Tap + > Signature

Using ContinuePDF

For more options, use ContinuePDF on iPhone. Add multiple signatures, initials, and dates easily.

Method 4: Sign PDFs on Windows

Windows doesn't have a built-in PDF signer. Options:

  1. Adobe Acrobat Reader - Free but requires account
  2. ContinuePDF - No account needed

Related Tasks

After signing, you may need to:

Privacy Matters

When signing sensitive documents (contracts, medical forms, legal agreements), privacy is crucial. ContinuePDF processes everything locally - your documents and signature never leave your device.

Tips for Professional Signatures

  1. Use consistent sizing - Keep signature proportional to the document
  2. Sign in blue - Traditionally distinguishes originals from copies
  3. Add date - Always date your signature
  4. Flatten after signing - Prevents tampering

Conclusion

Electronic signatures are fast, legal, and convenient. ContinuePDF's free signing tool makes it easy to sign documents on any device while keeping your information private.