converseen software package provides batch image converter and resizer, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install converseen
converseen is installed in your system.
Make ensure the converseen package were installed using the commands given below,
$ sudo dpkg-query -l | grep converseen *
You will get with converseen package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Graphics |
| Package | converseen |
| Version | 0.8.4-1 |
| Description | batch image converter and resizer |
| Sub Section | Graphics |