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(web2c.info)gftodvi invocation

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GFtoDVI: Character proofs of fonts
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  GFtoDVI makes "proof sheets" from a GF bitmap file as output by, for
example, Metafont (Note: Metafont).  This is an indispensable aid for
font designers or Metafont hackers.  Synopsis:

     gftodvi [OPTION]... GFNAME[gf]

  The font GFNAME is searched for in the usual places (Note: Glyph
lookup.).  To see all the relevant paths, set
the environment variable `KPATHSEA_DEBUG' to `-1' before running the
program.

  The suffix `gf' is supplied if not already present.  This suffix is
not an extension; no `.' precedes it: for instance `cmr10.600gf'.

  The output filename is the basename of GFNAME extended with `.dvi',
e.g., `gftodvi /wherever/foo.600gf' creates `./foo.dvi'.

  The characters from GFNAME appear one per page in the DVI output,
with labels, titles, and annotations, as specified in Appendix H
(Hardcopy Proofs) of `The Metafontbook'.

  GFtoDVI uses several fonts besides GFNAME itself:

   * "gray font" (default `gray'): for the pixels that actually make up
     the character.  Simply using black is not right, since then labels,
     key points, and other information could not be shown.

   * "title font" (default `cmr8'): for the header information at the
     top of each output page.

   * "label font" (default `cmtt10'): for the labels on key points of
     the figure.

   * "slant font" (no default): for diagonal lines, which are otherwise
     simulated using horizontal and vertical rules.


  To change the default fonts, you must use `special' commands in your
Metafont source file.

  The program accepts the following option, as well as the standard
`-verbose', `-help', and `-version' (Note: Common options):
`-overflow-label-offset=POINTS'
     Typeset the so-called overflow labels, if any, POINTS TeX points
     from the right edge of the character bounding box.  The default is
     a little over two inches (ten million scaled points, to be
     precise).  Overflow equations are used to locate coordinates when
     their actual position is too crowded with other information.