How to Add Signature to PDF

Adding a signature to a PDF document doesn't require expensive software or technical expertise. In this guide, you'll learn how to add your electronic signature to any PDF file in just a few simple steps.

Quick Method: Add Signature to PDF Online

The fastest way to add a signature to a PDF is using an online tool like Signatly. Here's how:

Step 1: Upload Your PDF

Go to Signatly's Add Signature tool and upload your PDF file. You can drag and drop or click to browse your files.

Step 2: Create Your Signature

Choose how you want to create your signature:

Step 3: Place Your Signature

Click anywhere on the PDF where you want your signature to appear. You can drag to reposition and resize it to fit the signature line perfectly.

Step 4: Download Your Signed PDF

Once you're happy with the placement, click download. Your signed PDF will be saved to your device immediately.

Create a free account to save your signature and reuse it on future documents without having to create it again each time.

Are Electronic Signatures on PDFs Legal?

Yes! Electronic signatures are legally binding in most countries worldwide. In the United States, the ESIGN Act and UETA give electronic signatures the same legal status as handwritten signatures. The European Union recognizes e-signatures under eIDAS regulation.

Types of Signatures You Can Add

Electronic Signatures

The most common type - simply your name typed, drawn, or uploaded as an image. Perfect for most business documents, contracts, and agreements.

Digital Signatures

A more secure type using cryptographic certificates. These provide additional verification and are tamper-evident. Best for highly sensitive or regulated documents.

What Documents Can I Sign?

Ready to Add Your Signature?

Try Signatly free - no account required for basic signing.

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Frequently Asked Questions

Is it free to add a signature to a PDF?

Yes! Signatly offers free PDF signing with no account required. You can add signatures to unlimited PDFs at no cost.

Do I need to download any software?

No software installation needed. Signatly works entirely in your web browser on any device.

Can I add a signature on my phone?

Absolutely! Our tool works on iPhone, Android, and tablets. Just open it in your mobile browser.

Is my document secure?

Yes. All documents are encrypted during upload. Files are automatically deleted from our servers after you download your signed document.