apngdis software package provides deconstruct APNG file into a sequence of PNG frames, 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 apngdis
apngdis is installed in your system.
Make ensure the apngdis package were installed using the commands given below,
$ sudo dpkg-query -l | grep apngdis *
You will get with apngdis package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Graphics |
| Package | apngdis |
| Version | 2.5-1 |
| Description | deconstruct APNG file into a sequence of PNG frames |
| Sub Section | Graphics |