How to Sign a PDF Online: A Step-by-Step Guide

July 20255 min read

Need to sign a PDF document but don't have a printer or scanner? This guide shows you how to sign PDFs electronically in just a few clicks, whether you're signing yourself or sending to others.

Why Sign PDFs Online?

Gone are the days of printing documents, signing by hand, scanning, and emailing back. Modern e-signature tools let you sign PDFs directly online, saving time and paper while creating legally binding signatures.

Benefits of Signing PDFs Online:

  • Sign from anywhere - home, office, or on the go
  • No printer or scanner needed
  • Legally binding under Australian law
  • Faster turnaround - documents signed in minutes, not days
  • Complete audit trail for legal protection

How to Sign a PDF with AirSign

Follow these simple steps to sign a PDF online using AirSign:

1

Upload Your PDF

Go to AirSign and create a free account (or log in if you already have one). Click "New Session" and upload the PDF document you need to sign. You can drag and drop the file or browse to select it.

2

Add Signature Fields

Click where you want to place a signature field on the document. You can add fields for yourself and for other signers if the document needs multiple signatures. Drag to position the fields exactly where you want them.

3

Create Your Signature

Click on the signature field to add your signature. You have several options:

  • Draw - Use your mouse, trackpad, or finger (on touch devices) to draw your signature
  • Type - Type your name and choose from stylish signature fonts
  • Upload - Upload an image of your existing signature
4

Send or Download

If you're the only signer, simply complete the signing process and download your signed PDF. If others need to sign, enter their email addresses and AirSign will send them a link to sign. You'll be notified when everyone has signed.

How to Sign PDFs on Your Phone

Need to sign a document on the go? AirSign works perfectly on mobile devices - no app download required.

  1. 1Open the signing link in your mobile browser (Safari, Chrome, etc.)
  2. 2Review the document by scrolling through it
  3. 3Tap the signature field and draw your signature with your finger
  4. 4Tap "Complete" to finish signing

How to Send a PDF for Someone Else to Sign

Need to get a document signed by a client, employee, or business partner? Here's how:

  1. 1
    Upload your document - Start a new session and upload the PDF
  2. 2
    Add signers - Enter the email addresses of everyone who needs to sign
  3. 3
    Place signature fields - Drag signature, date, or text fields to where each signer needs to complete
  4. 4
    Send for signing - Each signer receives an email with a link to sign
  5. 5
    Get notified - Receive an email when each person signs, and download the completed document

Are Online PDF Signatures Legal?

Yes! Electronic signatures are legally binding in Australia under the Electronic Transactions Act 1999. When you sign a PDF using AirSign, you get:

  • A tamper-evident digital certificate
  • Complete audit trail with timestamps
  • Signer identity verification via email
  • Secure document storage on Australian servers

Tips for Faster PDF Signing

Save Your Signature

AirSign remembers your signature, so you only need to create it once

Use Templates

Create templates for documents you sign frequently to save setup time

Add All Signers at Once

Set up all signers before sending to avoid multiple rounds

Use Date Fields

Add auto-fill date fields to automatically record when each person signed

Start Signing PDFs Online Today

Signing PDFs online is fast, easy, and legally binding. With AirSign, you can sign documents from anywhere, send documents for others to sign, and keep a secure record of every signature.

Create your free account today and sign your first document in minutes.

Ready to sign your first PDF online?

Create your free AirSign account and sign documents in minutes. No credit card required.