node-purified-image

Description

Load, save and draw with API similar to HTML Canvas Context 2D. No native dependencies. Wrap PureImage library.

Requirements

• node >= 8

PureImage

PureImage is a pure JavaScript implementation of image drawing and encoding API, based on HTML Canvas, for NodeJS. It has no native dependencies.

Current features:

• set pixels
• stroke and fill paths (rectangles, lines, quadratic curves, bezier curves, arcs/circles)
• copy and scale images (nearest neighbor)
• import and export JPG and PNG from streams using promises
• render basic text (no bold or italics yet)
• anti-aliased strokes and fills
• transforms
• standard globalAlpha and rgba() alpha compositing
• clip shapes

Installation

Install with npm:

npm install purified-image

Usage

const Image = require('purified-image');

let image = new Image('img/template.png');
image
  .loadFont('/res/OpenSans.ttf')
  .draw(ctx => {
    ctx.fillStyle = '#000000';
    ctx.font = '20 Open Sans';
    ctx.fillText('example', 30, 30);
  })
  .save('out.jpg')
  .then(() => console.log('saved'));

API

class Image

License

Licensed under MIT.