Sign PDF Online

Add a free digital signature to your PDF documents. Draw, type, or upload your signature in seconds, 100% securely.

What is an eSignature and Why Use It?

An electronic signature, or eSignature, is the digital equivalent of a handwritten signature on paper. It is a legal way to get consent or approval on electronic documents and forms. Using an eSignature is faster, more efficient, and more secure than traditional paper-based signing. It eliminates the need to print, sign by hand, and scan documents, streamlining your workflow entirely.

Our Free PDF Signer tool allows you to add your unique signature to any PDF document in seconds. This is perfect for signing contracts, application forms, invoices, and any legal document without leaving your web browser. By using a digital signature, you save time, reduce paper waste, and can finalize agreements from anywhere in the world.

How to Sign a PDF with SmartPDFs

We provide three simple, secure ways to create your signature, all processed 100% in your browser for total privacy:

• Type Signature: Simply type your name, and our tool will render it in a professional, handwritten-style font.
• Draw Signature: Use your mouse, trackpad, or finger (on mobile) to draw your unique signature directly onto the canvas.
• Upload Signature: If you already have a signature saved as an image (like a PNG with a transparent background), you can upload it directly.

After creating your signature, just tell the tool which page to place it on (or select **all pages**) and select a position (like "Bottom Right"). Click "Apply," and your new, signed PDF will be ready to download instantly. Because your file is never uploaded to our servers, you can be confident your sensitive documents remain private.