Fine control of the fonts with GFtoDVI

{\manual META}{\manual FONT} knows two special modes `proof' and `smoke,' corresponding to virtual devices with a resolution of 2602 dpi. The program {\mc GF}to{\mc DVI} can produce pretty printed hardcopies of fonts created for these devices. Simply type
   > GFtoDVI
and {\mc GF}to{\mc DVI} will prompt you for a gf-filename. You may change some internal settings for this run by appending a slash to this filename and {\mc GF}to{\mc DVI} will prompt you for ``special font substitutions,'' i.e., the replacement of `gray' or `black' fonts for a special output device. (See the `{\manual META}{\manual FONT}book' [4] for details.) Like most other programs, {\mc GF}to{\mc DVI} is capable of accepting its arguments directly from the command line input, so you may type
   > GFtoDVI cmr10.2602gf/
and you will be prompted for further input.