Description
int 
ps_findfont ( resource psdoc, string fontname, string encoding [, bool embed] )
   Loads a font for later use. Before text is output with a loaded font it
   must be set with ps_setfont(). This function needs the
   adobe font metric file in order to calculate the space used up by the
   characters. A font which is loaded within a page will only be available on
   that page. Fonts which are to be used in the complete document have to be
   loaded before the first call of ps_begin_page(). Calling
   ps_findfont() between pages will make that font
   available for all following pages.
  
   The name of the afm file must be
   fontname.afm. If the font
   shall be embedded the file
   fontname.pfb containing
   the font outline must be present as well.
  
   Calling ps_findfont() before the first page requires
   to output the postscript header which includes the BoundingBox for
   the whole document. Usually the BoundingBox is set with the first call
   of ps_begin_page() which now comes after
   ps_findfont(). Consequently the BoundingBox has not
   been set and a warning will be issued when ps_findfont()
   is called. In order to prevent this situation, one should call
   ps_set_parameter() to set the BoundingBox before
   ps_findfont() is called.