pngcheck software package provides print info and check PNG, JNG and MNG files, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install pngcheck
pngcheck is installed in your system.
Make ensure the pngcheck package were installed using the commands given below,
$ sudo dpkg-query -l | grep pngcheck *
You will get with pngcheck package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Development |
| Package | pngcheck |
| Version | 2.3.0-7 |
| Description | print info and check PNG, JNG and MNG files |
| Sub Section | devel |