| .. | ||
| lib | ||
| node_modules | ||
| vendor | ||
| cli.js | ||
| index.js | ||
| license | ||
| package.json | ||
| readme.md | ||
pngquant-bin 
pngquantis a PNG compressor that significantly reduces file sizes by converting images to a more efficient 8-bit PNG format
You probably want imagemin-pngquant instead.
Install
$ npm install pngquant-bin
Usage
const execFile = require('child_process').execFile;
const pngquant = require('pngquant-bin');
execFile(pngquant, ['-o', 'output.png', 'input.png'], err => {
	console.log('Image minified!');
});
CLI
$ npm install --global pngquant-bin
$ pngquant --help
Updating pre-compiled binaries
The Linux binaries are statically linked so they should work on all Linux distributions. To recompile them:
sudo apt-get install libpng-dev./configure CFLAGS=-static && make && cp pngquant pngquant-64- Repeat the above commands, but in a 32-bin docker container started with: docker run -ti -v 
pwd:/source i386/debian:9.3 bash 
License
MIT © Imagemin