Man page 1 : afm2tfm

afm2tfm - convert Adobe font metrics to TeX font metrics

PostScript fonts are (or should be) accompanied by font metric files such as

Times-Roman.afm, which describes the characteristics of the font called Times-Roman. To use such fonts with TeX, we need TFM files that contain similar information. This program does that conversion. For more information, print out the dvips manual.

psfonts.mapin the config directory used by dvips (update this).
../afm/Makefilein the dvips sources (look at this for examples).

dvips(1), tex(1), vptovf(1)

An option to add letterspacing to the virtual font was rejected by Knuth because it would make the fi and fl ligatures break the normal rhythmic pattern.

Tomas Rokicki <> and Donald E. Knuth