Gone are the days of printing a document, signing it by hand, and scanning it back. You can now add a signature to any PDF directly in your browser — for free, with no software required.
Types of PDF Signatures
Before you sign, it helps to understand the difference between signature types:
Electronic Signature (e-Signature)
A digital image of your handwritten signature placed on the PDF. This is what most people need for everyday documents like contracts, forms, and letters. It's legally valid in most countries for standard agreements.
Digital Signature (Cryptographic)
A cryptographically secured signature that proves document integrity and signer identity. Required for regulated industries (banking, government, legal). Needs a certificate from a trusted authority.
PDFix's PDF Editor supports electronic signatures — suitable for the vast majority of everyday signing needs.
How to Sign a PDF Online (Step-by-Step)
Using PDFix PDF Editor:
- Open the PDF Editor
- Upload your PDF
- Select the Signature tool from the toolbar (pen icon)
- Draw your signature with your mouse, trackpad, or touchscreen
- Position the signature on the document
- Download the signed PDF
Everything happens in your browser. Your document is never sent to a server.
Is an Electronic Signature Legally Valid?
- Malaysia — E-signatures are recognised under the Digital Signature Act 1997 and Electronic Commerce Act 2006
- USA — Valid under ESIGN Act and UETA
- EU — Recognised under eIDAS regulation
Sign your first document for free — open the PDF Editor now, no account needed.