pngquant

The pngquant utility as a readable/writable stream

BSD-3-Clause 25 个版本

pngquant png image optimization stream filter read/write duplex

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安装

npm install pngquant

yarn add pngquant

pnpm add pngquant

bun add pngquant

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]):

import PngQuant from 'pngquant';

const myPngQuanter = new PngQuant([192, '--quality', '60-80', '--nofs', '-']);

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

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

import PngQuant from 'pngquant';
import http from '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

Releases

See the changelog.

License

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

版本列表

4.2.0 2023-07-20

4.1.0 2022-09-20

4.0.0 2021-02-13

3.1.0 2020-07-22

3.0.0 2019-05-23

2.0.1 2019-03-03

1.3.0 2017-04-27

1.2.0 2017-01-21

1.1.1 2016-07-21

1.1.0 2016-07-19

1.0.0 2016-03-31

0.6.0 2015-09-20

0.5.0 2015-07-28

0.4.0 2014-11-14

0.3.0 2014-10-21

0.2.0 2014-09-22

0.1.5 2014-05-28

0.1.4 2014-03-26

0.1.3 2014-03-25

0.1.2 2014-03-24

0.1.1 2014-03-22

0.1.0 2013-11-18

0.0.3 2012-12-01

0.0.2 2012-12-01

0.0.1 2012-12-01