Package groff-x11

Parts of the groff formatting system that require X Windows System

http://www.gnu.org/software/groff/

The groff-x11 package contains the parts of the groff text processor
package that require X Windows System. These include gxditview (display
groff intermediate output files on X Window System display) and
xtotroff (converts X font metrics into groff font metrics).

General Commands
Command Description
gxditview display groff intermediate output files
xtotroff convert X font metrics into GNU troff font metrics