pngcrush command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

pngcrush: command not found

or when using sudo you get the following error message

sudo: pngcrush: command not found

Solutions to pngcrush: command not found

How To Fix pngcrush: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu pngcrush is provided by pngcrush package.

pngcrush is:

Pngcrush is an optimizer for PNG (Portable Network Graphics) files. Its main purpose is to reduce the size of the PNG IDAT data stream by trying various compression levels and PNG filter methods. It also can be used to remove unwanted ancillary chunks, or to add certain chunks including gAMA, tRNS, and textual chunks.

To fix this problem, we can install more using the command below.

sudo apt-get -y install pngcrush

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install pngcrush.

sudo apt -y install pngcrush

Or if you have aptitude installed you can use the following command.

sudo aptitude install pngcrush

Summary

In this tutorial we learn how to fix pngcrush command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.