Man pages matching name pbmtoascii in section 1:

pbmtoascii.1.pl	debian 10 / manpages-pl
pbmtoascii.1.en	debian 10 / netpbm
pbmtoascii.1.pl	debian 11 / manpages-pl
pbmtoascii.1.en	debian 11 / netpbm
pbmtoascii.1.en	debian 12 / netpbm