I'm not sure if this will do the job or not. It is a font editor, but it says .fnt instead of the .psf you mention. I don't know much about fonts so maybe I should have kept my mouth shut :-) Hope this info is helpful.
<begin quote from dselect's description of "fonter"> fonter - Interactive font editor for the console Fonter is an interactive console font (8x16 .fnt) manipulation tool. It's a linux-console-only program that displays all 256 characters of the font on screen and lets you edit them in realtime. <end quote> On Sun, 8 Aug 1999, peter karlsson wrote: > Hi! > > Is there a font editor included in Debian to let me edit the console fonts > (.psf) (and unicode mappings) in a sensible way? I'd like to take the font > on my video card and remap it to Latin-1 so I can use it as a console font. > > (And I need to fix the unicode mapping, since they seems to be all messed up > in potato, whereas they worked in slink).