szimek/signature_pad: HTML5 canvas based smooth signature drawing

Signature Pad is a JavaScript library for drawing smooth signatures using HTML5 canvas and Bézier curve interpolation. It supports all modern browsers and offers features like erase and undo, along with various customization options for elements such as pen color, min/max width, and background color. Installation can be done via npm, Yarn, or directly with a script tag. The library also handles high DPI screens and provides various methods for converting and manipulating the signature data in different formats.