Guide · 3 min read · Updated 15 October 2026

How to sign a PDF without printing it

Printing a contract, signing it with a pen and scanning it back takes a printer, a scanner and ten minutes, and the result is a crooked, grey copy. You can do the same on a computer or phone in a minute, with a cleaner result. This guide shows how, and explains the one thing to check first: whether a signature drawn on the page is what the other side actually needs.

Visual signature or digital signature?

There are two quite different things called “signing a PDF”:

A visual signature is a picture of your handwritten signature placed on the page, exactly like signing a printout and scanning it. It is what most people mean and what most everyday documents need: rental and employment forms, consent forms, internal approvals, many agreements between people and businesses.
A digital (certificate-based) signature is cryptographic proof of who signed and that nothing changed afterwards. Some government, banking and court procedures require it, often using an electronic ID card or a qualified provider.

If the request says “sign and send back”, a visual signature is almost always fine. If it says “qualified”, “digital” or “electronic signature with certificate”, use the service they name instead.

Step 1: make a good-looking signature

You can create the signature three ways in Sign PDF:

Draw it with a finger on a phone or tablet. This looks most like a pen signature. With a mouse, draw slowly and larger than you need.
Upload a photo of your signature: sign with a dark pen on plain white paper, photograph it in good light and upload it. For the cleanest result, remove the paper background first with Remove background and save it as a transparent PNG.
Type your name in a handwriting font, which is tidy and fine for forms that only need a name.

Choose blue ink. It makes it obvious the document was signed, rather than being a black-and-white photocopy of a signed page.

Step 2: place it on the page

Open the PDF and go to the page with the signature line.
Click where the signature belongs; it appears there.
Drag it onto the line and adjust the size so it fits naturally, roughly the height of two lines of text.
Go to any other page that needs a signature or initials and click to place it again.
Download the signed PDF.

Everything happens in your browser: the document and your signature are never uploaded, and the signature is not kept after you close the page.

PDF + ✍Sign PDFSign PDFs without printing: draw, type or upload your signature and place it on any page. Free, private, no sign-up, no upload.

Before you send it

Open the signed file and check every page that needed signing.
If you have to return several documents, combine them into one file with Merge PDF.
For sensitive documents, add a password with Protect PDF and send the password separately.
Keep a copy of exactly what you signed.

Frequently asked questions

Is a signature drawn on a PDF legally valid?

For many everyday agreements a visual signature is accepted, in the same way as a signed and scanned page. Some procedures require a certificate-based digital signature; check what the recipient asks for.

Can I sign a PDF on my phone?

Yes. Open Sign PDF in your phone’s browser, draw the signature with your finger and place it on the page.

Can I fill in the text fields too?

Sign PDF places signatures, not text. If the PDF has fillable fields, fill them in a PDF reader first, then add the signature.

Is my signature saved anywhere?

No. It exists only in your browser while the page is open.