Man pages matching name filterm in section 1:

filterm.1.en	debian 10 / konwert
filterm.1.pl	debian 10 / konwert
filterm.1.en	debian 11 / konwert
filterm.1.pl	debian 11 / konwert
filterm.1.en	debian 12 / konwert
filterm.1.pl	debian 12 / konwert