[pdftex] psfonts.map and pdftex.map.

[Thomas Esser]

>     > According to the Pdftex Manual the layout of psfonts.map and
>     > pdftex.map are essentially identical. Is there a reason why
>     > psfonts.map should not be used for both purposes? What about a
>     > consolidated file containing selections from each?
> 
> dvips needs the PostScript /FontName (i.e. /Palatino-Bold) always.
> 
> pdftex gets into trouble if a /FontName appears in a line containing
> statements like ...SlantFont or ...ExtendFont.
> 
> Thus pdftex.map should not contain /FontNames for transformed fonts,
> but dvips needs them.

More differences:
- different sets of builtin fonts
- a technical aspect: pdftex can only make use of ExtendFont / SlantFont
  for "downloaded" fonts
- different font support: pdftex supports postscript type1 and truetype
  whereas dvips does not support truetype but postscript type1 and type3

teTeX / TeX Live 8 have a much improved updmap utility which generates
map files for several applications from a common configuration. This
tool does its best about the different characteristics of the supported
applications.

Thomas