nilesolutions · December 23, 2017 14:35
diff --git a/gistfile1.txt b/gistfile1.txt
 OptiPNG is a useful tool to compress png images without loss its quality, it really help reduce the bandwidth, diskspace and the loading/response time for website. I used it to re-compress all the png images on cdnjs and successfully made 206857 images smaller(see cdnjs/cdnjs@e936c87e9044fd2b123).

 It’s easy to use, you can install it via apt-get, or download and build it from source :
 $ sudo apt-get install optipng

 Usage:
 $ optipng example.png

 The default compress level is 2, the range is 0~7 (may depends on the version you are using), I will always use the highest and slowest level:
 $ optipng -o7 example.png

 Find all the png images to compress:
 $ find path -name "*.png" -exec optipng -o7 {} \;

 In fact, optipng can convert BMP, GIF, PNM and TIFF format image to optimized optimized png, and also performs PNG integrity checks and corrections, very nice.
	OptiPNG is a useful tool to compress png images without loss its quality, it really help reduce the bandwidth, diskspace and the loading/response time for website. I used it to re-compress all the png images on cdnjs and successfully made 206857 images smaller(see cdnjs/cdnjs@e936c87e9044fd2b123).

	It’s easy to use, you can install it via apt-get, or download and build it from source :
	$ sudo apt-get install optipng

	Usage:
	$ optipng example.png

	The default compress level is 2, the range is 0~7 (may depends on the version you are using), I will always use the highest and slowest level:
	$ optipng -o7 example.png

	Find all the png images to compress:
	$ find path -name "*.png" -exec optipng -o7 {} \;

	In fact, optipng can convert BMP, GIF, PNM and TIFF format image to optimized optimized png, and also performs PNG integrity checks and corrections, very nice.