This plugin sets a div to allow capture of a signature and converts it to JSON or SVG for storage. Requires jQuery UI and ExCanvas (for IE).
Have a look at the plugin Web site, http://keith-wood.name/signature.html, for demonstrations of its abilities.
For documentation on the functionality see http://keith-wood.name/signatureRef.html.
This fork enhances the plugin with responsive and data normalization features.
Responsive Demo: https://admin.deloma.de/sites/mobile/testSignature.xhtml
The only relevant changed file is: jquery.signature.js