readme.md

imagemin-upng

upng imagemin plugin

Install

npm install --save imagemin-upng

Usage

CLI

imagemin foo.png --plugin=upng > foo-optimized.png

API

import imagemin from 'imagemin'
import imageminUpng from 'imagemin-upng'

const files = await imagemin(['images/*.png'], {
  destination: 'build/images',
  plugins: [imageminUpng()],
})

console.log(files)
//=> [{data: <Buffer 89 50 4e …>, destinationPath: 'build/images/foo.jpg'}, …]

API

imageminUpng([options])(buffer)

Returns a promise for a buffer.

options

cnum

Type: number Default: 256

number of colors in the result (0 = lossless, 256 = lossy).

buffer

Type: Buffer

Buffer to optimize.