How To Install pngcheck on Fedora 36

In this tutorial we learn how to install pngcheck in Fedora 36. pngcheck is Verifies the integrity of PNG, JNG and MNG files

Introduction

In this tutorial we learn how to install pngcheck on Fedora 36.

What is `pngcheck`

pngcheck verifies the integrity of PNG, JNG and MNG files (by checking the internal 32-bit CRCs [checksums] and decompressing the image data); it can optionally dump almost all of the chunk-level information in the image in human-readable form. For example, it can be used to print the basic statistics about an image (dimensions, bit depth, etc.); to list the color and transparency info in its palette (assuming it has one); or to extract the embedded text annotations. This is a command-line program with batch capabilities. The current release supports all PNG, MNG and JNG chunks, including the newly approved sTER stereo-layout chunk. It correctly reports errors in all but two of the images in Chris Nokleberg’s brokensuite-20061204.

We can use yum or dnf to install pngcheck on Fedora 36. In this tutorial we discuss both methods but you only need to choose one of method to install pngcheck.

Install pngcheck on Fedora 36 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

After updating yum database, We can install pngcheck using dnf by running the following command:

sudo dnf -y install pngcheck

Install pngcheck on Fedora 36 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

After updating yum database, We can install pngcheck using yum by running the following command:

sudo yum -y install pngcheck

How To Uninstall pngcheck on Fedora 36

To uninstall only the pngcheck package we can use the following command:

sudo dnf remove pngcheck

pngcheck Package Contents on Fedora 36

/usr/bin/pngcheck
/usr/lib/.build-id
/usr/lib/.build-id/e3
/usr/lib/.build-id/e3/25916567b10e4b750cdbcf5be69249d7470fb8
/usr/share/doc/pngcheck
/usr/share/doc/pngcheck/CHANGELOG
/usr/share/doc/pngcheck/README
/usr/share/licenses/pngcheck
/usr/share/licenses/pngcheck/LICENSE
/usr/share/man/man1/pngcheck.1.gz

References

pngcheck website

Summary

In this tutorial we learn how to install pngcheck on Fedora 36 using yum and [dnf]((/fedora/36/dnf/).