PFB, PFM are NOT Font Formats, they are files added to the fonts in which you have some extra code (not really required data) and these are not needed on MacOs (Winblah uses them, way screwed up font management system on this crappy OS). The only font types a Mac uses are TrueType (TTF), PostScript (type 1, type 2 and type 3) with Bitmaps. The last ones always come together, the PS is for printing and the bitmap is for screen display.