jSignature is a jQuery plugin that help people to create web signature image easily, draw in signature box and get the signature image code in a second.
Its would be a great digital signature script best for new generation applications such as office document apps, email apps, ecommerce, retail system and more. jSignature is rendering your drawing input in real-time and generate your signature image using HTML5 canvas, if HTML5 not supported it will auto fall back to Flash-based Canvas to achieve cross browser support.
Your signature will be available in PNG or SVG format. Think something new idea that can be implement with jSignature. It is free and easy to use just download the demo files and study that few lines of code.
Thanks Willow Systems who created this useful jQuery plugin for free. Its 2 years old (quite old) but I hope it still can give you some new app ideas!
jSignature is released under MIT license.
Cost: FREE
Requirement: HTML5, jQuery
Source: Read more about jSignature