Assuming that you are using Debian Stretch you could obtain pge adding these entries to your /etc/apt/sources.list.
deb http://floppsie.comp.glam.ac.uk/debian/ stretch main deb-src http://floppsie.comp.glam.ac.uk/debian/ stretch main
Now they can be installed by using the following commands:
$ sudo apt-get update $ sudo apt-get install dselect $ sudo dselect
In dselect you should choose option 1 update and then choose option 2 and select the package pge. Then you should press Q and then select option 3 install.