How to use OptiPNG Image Optimizer In Linux

The syntax of using OptiPng is very simple, we have to just mention the name of the png file after the optipng command.

optipng gfg.png

Let’s compress the file named gfg.png before that, find out the size of the gfg.png file using the ls command:

ls -l gfg.png

The size of gfg.png is 534k now let’s use the optipng tool on that file

optipng gfg.png

We can see that the size gets reduced from 534k to 522k.

Batch PNG Image Compression & Optimization

We can optimize the all .png files in a folder using the following command:

optipng *.png

To save generated output files into another folder, use the -dir option with optipng command:

optipng --dir=compressed gfg.png

To compress selective files with the optipng just mention the file names separated by space:

optipng gfg1.png gfg2.png

To know more about the optipng command, read the man page of optipng using man command:

man optipng

Optimize and Compress JPEG or PNG Images in Linux Command line

Today there are many GUI tools that compress and optimize the images, which are very useful. But if you are terminal addicted and want to compress and optimize the images in the terminal before uploading to the cloud, then you can do it. There are two tools by using which we can compress and optimize images. These are –