📋 Table of Contents
Need to sign a PDF document quickly? You're in the right place. In this guide, we'll show you exactly how to sign any PDF electronically – whether you're on a computer, phone, or tablet.
Sign PDFs Free with Signatly
The fastest way to sign PDF documents online. No download required.
Sign Your PDF Free →Quick Method: Sign a PDF in 5 Steps
Here's the fastest way to sign a PDF electronically using Signatly:
Step 1: Upload Your PDF
Go to app.signatly.com and upload your PDF document. You can drag and drop or click to browse your files.
Step 2: Add Signature Fields
Click where you want to place your signature on the document. You can add multiple signature fields if needed.
Step 3: Create Your Signature
Draw your signature with your mouse or finger, type your name to generate a signature, or upload an image of your signature.
Step 4: Apply Your Signature
Click on the signature field to apply your signature. Review the placement and make any adjustments.
Step 5: Download Your Signed PDF
Download your signed PDF document. It's now ready to share or submit!
💡 Pro Tip
Save your signature in Signatly so you can sign future documents even faster. Your signature is saved securely and ready to use anytime.
What is an Electronic PDF Signature?
An electronic signature (e-signature) on a PDF is a digital representation of your handwritten signature. It's legally binding and can be used to sign contracts, agreements, forms, and any other document that requires your signature.
Electronic signatures are:
- Legally binding – Under the ESIGN Act and UETA, e-signatures have the same legal weight as handwritten signatures
- Secure – Includes timestamps and audit trails for verification
- Convenient – Sign from anywhere, on any device
- Fast – No printing, scanning, or mailing required
Different Methods to Sign PDFs
1. Online E-Signature Tools (Recommended)
The easiest and most reliable method. Tools like Signatly let you:
- Sign directly in your browser
- No software to download
- Get legally binding signatures
- Include audit trails for compliance
2. Adobe Acrobat
Adobe Reader has basic signing features, but requires:
- Software installation
- Paid subscription for advanced features
- More complex setup process
3. Preview on Mac
Mac users can use Preview for basic signatures, but it:
- Only works on Mac
- Lacks audit trails
- No collaboration features
How to Sign with Signatly (Free)
Signatly is our recommended tool for signing PDFs because it's:
- ✓ Free to use (2 documents/month)
- ✓ No download required
- ✓ Works on any device
- ✓ Legally binding with audit trails
- ✓ Easy to request signatures from others
How to Sign on Mobile (iPhone & Android)
To sign a PDF on your phone:
- Open app.signatly.com in your mobile browser
- Upload your PDF (you can take a photo of a document too)
- Use your finger to draw your signature
- Place your signature on the document
- Download or share the signed PDF
Are Electronic PDF Signatures Legal?
Yes! Electronic signatures are legally binding in:
- United States – ESIGN Act and UETA
- European Union – eIDAS Regulation
- Canada – PIPEDA and provincial laws
- Australia – Electronic Transactions Act
- Most other countries – Have similar e-signature laws
Learn more: Are Electronic Signatures Legal?
Frequently Asked Questions
Is it free to sign a PDF electronically?
Yes! Signatly offers a free plan that lets you sign 2 documents per month. For occasional signing needs, this is completely free.
Do I need to download any software?
No. With Signatly, you can sign PDFs directly in your web browser. No download or installation required.
Can I sign a PDF on my phone?
Yes! Signatly works on any device with a web browser, including iPhones, Android phones, and tablets.
Is my signature secure?
Yes. Signatly uses bank-level encryption to protect your signature and documents. Every signature includes an audit trail with timestamps.
Can I request someone else to sign a PDF?
Yes! With Signatly, you can send PDFs to others for signature. They'll receive an email link to sign, and you'll be notified when they complete it.