(PECL ps >= 1.1.0)
ps_setfont — Sets font to use for following output
$psdoc
   , int $fontid
   , float $size
   )Sets a font, which has to be loaded before with ps_findfont(). Outputting text without setting a font results in an error.
psdocResource identifier of the postscript file as returned by ps_new().
fontidThe font identifier as returned by ps_findfont().
sizeThe size of the font.
   Returns TRUE on success or FALSE on failure.