How to install and use optipng on Linux CentOS

October 26, 2018

If you have some png files that you want to optimise, you can use optipng to do it without losing any data in the image. Here are the commands you need to use to first install optipng, then recursively run it on all png images in a directory

First you must install optipng on your server, with this command:

yum install optipng

Then run it on all png images within the current directory (and all subdirectories)

find . -name "*.png" -exec optipng -o7 {} \;

You should also see my page explaining how to do the same thing but for jpg images