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44 lines
1.1 KiB
44 lines
1.1 KiB
# pngquant-bin 
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> [`pngquant`](https://github.com/kornelski/pngquant) is a PNG compressor that significantly reduces file sizes by converting images to a more efficient 8-bit PNG format
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You probably want [`imagemin-pngquant`](https://github.com/imagemin/imagemin-pngquant) instead.
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## Install
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```
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$ npm install pngquant-bin
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```
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## Usage
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```js
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const {execFile} = require('child_process');
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const pngquant = require('pngquant-bin');
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execFile(pngquant, ['-o', 'output.png', 'input.png'], err => {
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console.log('Image minified!');
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});
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```
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## CLI
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```
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$ npm install --global pngquant-bin
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```
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```
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$ pngquant --help
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```
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## Updating pre-compiled binaries
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The Linux binaries are statically linked so they should work on all Linux distributions. To recompile them:
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1. `sudo apt-get install libpng-dev`
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2. `./configure CFLAGS=-static && make && cp pngquant pngquant-64`
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3. Repeat the above commands, but in a 32-bin docker container started with: docker run -ti -v `pwd`:/source i386/debian:9.3 bash
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