How to use Sign PDF
- Select or drag your PDF file.
- Create your signature: draw it, type your name or upload an image.
- Tap the page where it should go, drag and resize it, then click Sign PDF and download.
Private document signing
Contracts, offer letters and forms often contain personal details. This tool signs your PDF entirely inside your browser, so the document is never uploaded to a server.
Three ways to sign
Draw your signature with a mouse, trackpad or finger; type your name in a handwriting-style font; or upload a photo or scan of your real signature. White backgrounds in uploaded signatures can be removed automatically.
Is an electronic signature legally valid?
In many countries, including the US (ESIGN Act), the EU (eIDAS) and India (IT Act), simple electronic signatures are accepted for many everyday documents. Some documents legally require certified digital signatures, so check what your recipient needs.
Make your signature look natural
Drawing with a finger on a phone usually looks more natural than a mouse. If you upload a photo of your handwritten signature, sign with a dark pen on plain white paper and take the photo in good light so the background removal works cleanly.
Frequently asked questions
Can I add more than one signature?
Yes. Tap any page as many times as you need — each tap places another copy you can move, resize or remove.
Does signing change the rest of my PDF?
No. Your signature is added on top of the page. Text, images and layout stay exactly the same.
Are my files uploaded to a server?
No. Everything is processed directly in your browser using JavaScript. Your files never leave your device, so they stay completely private.
Is this tool really free?
Yes. It is 100% free with no sign-up, no watermark and no limit on how many times you use it.
Last updated: · Free to use, no sign-up.