If you are a debian developer and have a package that install
type1 fonts you can use dtm to install them by putting the
fonts in /usr/share/fonts/type1/outlines, and an appropriate
catalog snippet (see /usr/doc/dtm/examples) in 
/usr/lib/dtm/catalogs/type1. Then call dtm in your postinst
script:

if [ -x /usr/bin/dtm ] then
  dtm --add /usr/lib/dtm/catalogs/type1/<your snippet>
fi

To remove the fonts just call dtm in the prerm (and not in postrm):

if [ -x /usr/bin/dtm ] then
  dtm --purge /usr/lib/dtm/catalogs/type1/<your snippet>
fi