How to Sign a PDF Online (Free, No Software Needed)

Is an electronic signature legally binding?

Yes, in most countries and for most document types. The key legislation:

• ·European Union: eIDAS Regulation — electronic signatures are legally valid across all EU member states
• ·United States: ESIGN Act and UETA — electronic signatures are legally binding for commercial and consumer agreements
• ·United Kingdom: Electronic Communications Act 2000 — electronic signatures are admissible in legal proceedings
• ·Australia, Canada, Singapore, and most other countries have equivalent legislation

There are narrow exceptions: notarised documents, wills, adoption papers, and certain real estate transactions may require wet signatures in some jurisdictions. Check with a legal professional if you are unsure.

Three ways to create your signature

• ·Draw — use your mouse on desktop or your finger on a touchscreen. The most natural-looking option on mobile.
• ·Type — enter your name and choose from handwriting-style fonts. Quick and clean on desktop.
• ·Upload — photograph your handwritten signature on paper, upload it as PNG or JPG. Use a white or transparent background for the best result.

Step-by-step: sign a PDF with EditPDF AI

1. 1Go to editpdfai.com/pdf-signer and open the PDF you need to sign.
2. 2Click the Signature tool in the toolbar on the left.
3. 3Choose Draw, Type, or Upload and create your signature.
4. 4Click anywhere on the document page to place the signature.
5. 5Drag to reposition it and use the corner handles to resize it.
6. 6Repeat for any additional pages that need a signature or initials.
7. 7Click Download to save the signed PDF.

Tips for professional-looking results

• ·Draw your signature on a phone or tablet touchscreen — the natural pen-like motion produces a more realistic signature than a mouse
• ·If uploading a photo of your signature, scan it against a white background and use a photo editing app to remove the background before uploading
• ·Sign on the designated signature line — use the zoom feature to position it precisely
• ·Add your initials on early pages and a full signature on the final page for multi-page contracts
• ·Note the date next to your signature if the document does not have a date field