How to Sign a PDF Online Without Printing — Free & Legal | Plainscan

Gone are the days of printing a document, signing it, scanning it, and emailing it back. Digital signatures are not only faster and more convenient — they're legally valid in most countries under e-signature laws like the US ESIGN Act and the EU's eIDAS regulation. With Plainscan's free PDF Sign tool, you can add your signature to any PDF in seconds, directly in your browser.

Are Digital Signatures Legally Valid?

Yes. In most countries, e-signatures on documents are legally binding for the vast majority of use cases including contracts, agreements, NDAs, consent forms, and business documents. Major legislation covering digital signatures includes:

Major Legislation

USA: ESIGN Act (2000) and UETA
EU: eIDAS Regulation
UK: Electronic Communications Act 2000
Australia: Electronic Transactions Act 1999

Note: Some documents — like wills, notarized deeds, and specific government filings — may still legally require wet (physical) signatures.

Step-by-Step Guide

Go to PDF Sign tool.
Upload the PDF you need to sign.
Choose your signature method (Draw, Type, or Upload).
Position your signature on the document.
Add date, initials, or text fields if needed.
Click Apply and download your signed PDF.

What Else Can I Add to a PDF?

Plainscan's PDF Sign tool is more than just a signature tool. You can also add:

Date Stamps

Initials

Text Fields

Checkboxes

Frequently Asked Questions

Is a digital signature on a PDF legally binding?

Yes, in most countries and for most document types. E-signatures are legally recognized under the US ESIGN Act, the EU eIDAS regulation, and equivalent laws in over 60 countries.

Can I sign a PDF for free without creating an account?

Yes. Plainscan's PDF Sign tool is free with no account required for up to 5 uses per day. Simply upload, sign, and download.

How do I add my handwritten signature to a PDF?

You can draw your signature directly in the browser using your mouse or finger, type your name in a script font, or upload a photo/scan of your handwritten signature as an image file.