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imagemin

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    imagemin

Minify images


Version published
Maintainers
2
Install size
25.8 MB
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imagemin Build Status Build status

Minify images seamlessly

Install

$ npm install --save imagemin

Usage

var Imagemin = require('imagemin');

var imagemin = new Imagemin()
	.src('images/*.{gif,jpg,png,svg}')
	.dest('build/images')
	.use(Imagemin.jpegtran({ progressive: true }));

imagemin.run(function (err, files) {
	if (err) {
		throw err;
	}
	
	console.log(files[0]);
	// => { contents: <Buffer 89 50 4e ...> }
});

You can use gulp-rename to rename your files:

var Imagemin = require('imagemin');
var rename = require('gulp-rename');

var imagemin = new Imagemin()
	.src('images/foo.png')
	.use(rename('bar.png'));

API

new Imagemin()

Creates a new Imagemin instance.

.src(file)

Type: Array|Buffer|String

Set the files to be optimized. Takes a buffer, glob string or an array of glob strings as argument.

.dest(folder)

Type: String

Set the destination folder to where your files will be written. If you don't set any destination no files will be written.

.use(plugin)

Type: Function

Add a plugin to the middleware stack.

.run(cb)

Type: Function

Optimize your files with the given settings.

cb(err, files, stream)

The callback will return an array of vinyl files in files and a Readable/Writable stream in stream.

Plugins

The following plugins are bundled with imagemin:

  • gifsicle — Compress GIF images.
  • jpegtran — Compress JPG images.
  • optipng — Lossless compression of PNG images.
  • pngquant — Lossy compression of PNG images.
  • svgo — Compress SVG images.

.gifsicle()

Compress GIF images.

var Imagemin = require('imagemin');

var imagemin = new Imagemin()
	.use(Imagemin.gifsicle({ interlaced: true }));

.jpegtran()

Compress JPG images.

var Imagemin = require('imagemin');

var imagemin = new Imagemin()
	.use(Imagemin.jpegtran({ progressive: true }));

.optipng()

Lossless compression of PNG images.

var Imagemin = require('imagemin');

var imagemin = new Imagemin()
	.use(Imagemin.optipng({ optimizationLevel: 3 }));

.pngquant()

Lossy compression of PNG images.

var Imagemin = require('imagemin');

var imagemin = new Imagemin()
	.use(Imagemin.pngquant());

.svgo()

Compress SVG images.

var Imagemin = require('imagemin');

var imagemin = new Imagemin()
	.use(Imagemin.svgo());

CLI

$ npm install --global imagemin
$ imagemin --help

Usage
  imagemin <file> <directory>
  imagemin <file> > <output>
  cat <file> | imagemin > <output>

Example
  imagemin images/* build
  imagemin foo.png > foo-optimized.png
  cat foo.png | imagemin > foo-optimized.png

Options
  -i, --interlaced                    Interlace gif for progressive rendering
  -o, --optimizationLevel <number>    Select an optimization level between 0 and 7
  -p, --progressive                   Lossless conversion to progressive

License

MIT © imagemin

Keywords

FAQs

Last updated on 24 Oct 2014

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