Package Exports

pngquant

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (pngquant) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

node-pngquant

The pngquant command line utility as a readable/writable stream.

The constructor optionally takes an array of command line options for the pngquant binary (defaults to [256]):

var PngQuant = require('pngquant'),
    myPngQuanter = new PngQuant([192, '-ordered']);

sourceStream.pipe(myPngQuanter).pipe(destinationStream);

PngQuant as a web service (sends back a png with the number of colors quantized to 128):

var PngQuant = require('pngquant'),
    http = require('http');

http.createServer(function (req, res) {
    if (req.headers['content-type'] === 'image/png') {
        res.writeHead(200, {'Content-Type': 'image/png'});
        req.pipe(new PngQuant([128])).pipe(res);
    } else {
        res.writeHead(400);
        res.end('Feed me a PNG!');
    }
}).listen(1337);

Installation

Make sure you have node.js and npm installed, and that the pngquant binary is in your PATH, then run:

npm install pngquant

License

3-clause BSD license -- see the LICENSE file for details.