Sign a PDF
Sign a PDF online without printing it. Draw your signature with a finger or mouse, type your name in a handwriting style, or upload a photo of your real one, then drop it on the signature line.
or drop a file here
One PDF, up to 250 MB.
Processed on your device. Nothing is uploaded.
How to sign a PDF
Open the document
Choose the PDF that needs your signature.
Make your signature
Draw it, type it, or upload a picture of it on paper.
Place it
Drag it onto the line and resize it. Add today’s date with one click.
Save
Download the signed copy and send it back.
Signing options
Uploaded signatures look natural
Photograph your signature on white paper and we strip out the paper, so it doesn’t sit in a grey box.
Initials on every page
Place your initials once and copy them to the same spot on every page. Leases and contracts often ask for this.
Nothing saved
Your signature exists only while this page is open. We don’t keep it, and there’s no account to store it in.
Is a signature added like this legally valid?
For most everyday documents in the UK (consent forms, quotes, many contracts) an electronic signature, which includes an image of your signature, is generally capable of being legally binding. Some documents come with extra rules. Deeds usually need a witness, for example, and property and government processes often have their own systems.
This kind of signature shows you meant to sign. It doesn’t prove who signed or that the document hasn’t been changed since; a certificate-based digital signature does both, and PDF365 doesn’t create those. There’s more in our guide to electronic and digital signatures, and how to sign a PDF without printing it covers the built-in options on Mac, iPhone, Windows and Android. This is general information rather than legal advice; if a document matters a lot, check with whoever asked you to sign or with a solicitor.
Privacy and security
A picture of your signature is worth keeping private. Here it’s created and saved entirely on your device, then thrown away when you leave the page. Before sending, you might also flatten the PDF so the signature can’t be moved.
Read more in our privacy policy.
Sign PDF FAQs
Is this a digital signature?
No. It’s a visual electronic signature: an image on the page, with no digital certificate or tamper seal attached.
Can I sign on my phone?
Yes. Draw with your finger, then drag the signature into place. Turning the phone sideways gives you more room to draw.
Can I save my signature for next time?
Not on PDF365; we deliberately don’t store signatures. Keep a PNG of yours on your own device and upload it when you need it.