@lemonadejs/signature

Javascript Signature Pad

Official website and documentation is here

Compatible with Vanilla JavaScript, LemonadeJS, React, Vue or Angular.

The LemonadeJS JavaScript Signature Pad is a responsive component that simplifies signature capture in web applications. It is compatible with Vanilla JavaScript, React, Vue, and Angular frameworks, allowing users to capture signatures using either mouse or touch input. With convenient methods for loading and retrieving signatures, developers can easily create solutions that empower users to sign documents and securely store their signatures.

Features

• Lightweight: The lemonade signature pad is only about 2 KBytes;
• Reactive: Any changes to the underlying data are automatically applied to the HTML, making it easy to keep your grid up-to-date;
• Integration: It can be used as a standalone library or integrated with any modern framework;

Getting Started

You can install using NPM or using directly from a CDN.

npm Installation

To install it in your project using npm, run the following command:

$ npm install @lemonadejs/signature

CDN

To use data grid via a CDN, include the following script tags in your HTML file:

<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/lemonadejs/dist/lemonade.min.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/@lemonadejs/signature/dist/index.min.js"></script>

Configuration

Quick example

import Signature from "@lemonadejs/signature";

export default function Component() {
    const self = this;
    self.width = 400;
    self.height = 200;
    self.value = [];

    return `<Signature
        value="{{self.value}}"
        width="{{self.width}}"
        height="{{self.height}}"
        instructions="Please sign this document" />`;
}

Attributes

Attribute	Type	Description
value?	Array	The value represents the painted point's position.
width?	Number	The width of the signature pad.
height?	Number	The height of the signature pad.
instructions?	String	The instruction text. It appears at the bottom of the signature pad.
line?	Number	The size of each painted point.
disabled?	Boolean	Signature is disabled if true.
getValue	Function	Gets the value array.
setValue	Function	Sets the internal state value.
getImage	Function	Gets the image based on the value.

Events

Event	Description
onchange?	When the value of the component changes
onload?	When the component completes loading

License

The LemonadeJS signature pad is released under the MIT.

Other Tools

• jSuites
• Jspreadsheet