png-fix-IDAT-windowsize command not found

Introduction

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

png-fix-IDAT-windowsize: command not found

or when using sudo you get the following error message

sudo: png-fix-IDAT-windowsize: command not found

Solutions to png-fix-IDAT-windowsize: command not found

How To Fix png-fix-IDAT-windowsize: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu png-fix-IDAT-windowsize is provided by pngcheck package.

pngcheck is:

pngcheck verifies the integrity of PNG, JNG and MNG files (by checking the internal 32-bit CRCs or checksums) and optionally dumps almost all of the chunk-level information in the image in human-readable form. For example, it can be used to print the basic stats about an image (dimensions, bit depth, etc.); to list the color and transparency info in its palette; or to extract the embedded text annotations. All PNG and JNG chunks are supported, plus almost all MNG chunks (everything but PAST, DISC, tERm, DROP, DBYK, and ORDR). This is a command-line program with batch capabilities (e.g., pngcheck *.png).

Also includes pngsplit which can split a PNG, MNG or JNG file into individual, numbered chunks.

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

sudo apt-get -y install pngcheck

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

You can also use apt command to install pngcheck.

sudo apt -y install pngcheck

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

sudo aptitude install pngcheck

Summary

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