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AFMTODIT(1)                            General Commands Manual                           AFMTODIT(1)



NAME
       afmtodit - create font files for use with groff -Tps and -Tpdf

SYNOPSIS
       afmtodit [-ckmnsx] [-a n] [-d desc-file] [-e enc-file] [-f internal-name] [-i n] [-o output-
                file] afm-file map-file font

       afmtodit -v

DESCRIPTION
       afmtodit creates a font file for use with groff, grops, and gropdf.  afmtodit is  written  in
       Perl; you must have Perl version 5.004 or newer installed in order to run afmtodit.

       afm-file is the AFM (Adobe Font Metric) file for the font.

       map-file  is  a file that says which groff character names map onto each PostScript character
       name; this file should contain a sequence of lines of the form
              ps-char groff-char
       where ps-char is the PostScript name of the character and groff-char is the groff name of the
       character (as used in the groff font file).  The same ps-char can occur multiple times in the
       file; each groff-char must occur at most once.  Lines starting with ‘#’ and blank  lines  are
       ignored.   If  the  file  isn't found in the current directory, it is searched for in the de‐
       vps/generate subdirectory of the default font directory.

       If a PostScript character is not mentioned in map-file, and a generic groff glyph name  can't
       be  deduced  using  the  Adobe  Glyph List (AGL, built into afmtodit), then afmtodit puts the
       PostScript character into the groff font file as an unnamed character which can only  be  ac‐
       cessed by the ‘\N’ escape sequence in a roff document.  In particular, this is true for glyph
       variants named in the form “foo.bar”; all glyph names containing  one  or  more  periods  are
       mapped  to  unnamed entities.  If option -e is not specified, the encoding defined in the AFM
       file (i.e., entries with non-negative character codes) is used.  Refer to section “Using Sym‐
       bols”  in  Groff:  The GNU Implementation of troff, the groff Texinfo manual, which describes
       how groff glyph names are constructed.

       Characters not encoded in the AFM file (i.e., entries which have ‘-1’ as the character  code)
       are  still  available in groff; they get glyph index values greater than 255 (or greater than
       the biggest character code used in the AFM file in the unlikely case that it is greater  than
       255) in the groff font file.  Glyph indices of unencoded characters don't have a specific or‐
       der; it is best to access them with glyph names only.

       The groff font file will be output to a file called font, unless the -o option is used.

       If there is a downloadable font file for the font, it may be listed in the  file  /usr/share/
       groff/1.22.4/font/devps/download; see grops(1).

       If  the  -i option is used, afmtodit will automatically generate an italic correction, a left
       italic correction and a subscript correction for each character (the  significance  of  these
       parameters  is  explained in groff_font(5)); these parameters may be specified for individual
       characters by adding to the afm-file lines of the form:
              italicCorrection ps-char n
              leftItalicCorrection ps-char n
              subscriptCorrection ps-char n
       where ps-char is the PostScript name of the character, and n is the desired value of the cor‐
       responding  parameter in thousandths of an em.  These parameters are normally needed only for
       italic (or oblique) fonts.

OPTIONS
       Whitespace is permitted between a command-line option and its argument.

       -an    Use n as the slant parameter in the font file; this is used by groff in the  position‐
              ing of accents.  By default afmtodit uses the negative of the ItalicAngle specified in
              the AFM file; with true italic fonts it is sometimes desirable to use a slant that  is
              less  than  this.  If you find that characters from an italic font have accents placed
              too far to the right over them, then use the -a option to  give  the  font  a  smaller
              slant.

       -c     Include comments in the font file in order to identify the PostScript font.

       -ddesc-file
              The  device  description file is desc-file rather than the default DESC.  If not found
              in the current directory, the devps subdirectory of  the  default  font  directory  is
              searched  (this  is true for both the default device description file and a file given
              with option -d).

       -eenc-file
              The PostScript font should be reencoded to use the  encoding  described  in  enc-file.
              The  format  of enc-file is described in grops(1).  If not found in the current direc‐
              tory, the devps subdirectory of the default font directory is searched.

       -fname The internal name of the groff font is set to name.

       -in    Generate an italic correction for each character so that the  character's  width  plus
              the  character's  italic correction is equal to n thousandths of an em plus the amount
              by which the right edge of the character's bounding box is to the right of the charac‐
              ter's origin.  If this would result in a negative italic correction, use a zero italic
              correction instead.

              Also generate a subscript correction equal to the product of the tangent of the  slant
              of  the  font  and four fifths of the x-height of the font.  If this would result in a
              subscript correction greater than the italic correction, use  a  subscript  correction
              equal to the italic correction instead.

              Also generate a left italic correction for each character equal to n thousandths of an
              em plus the amount by which the left edge of the character's bounding box  is  to  the
              left of the character's origin.  The left italic correction may be negative unless op‐
              tion -m is given.

              This option is normally needed only with italic (or oblique) fonts.   The  font  files
              distributed with groff were created using an option of -i50 for italic fonts.

       -ooutput-file
              The output file is output-file instead of font.

       -k     Omit  any  kerning  data from the groff font; use only for monospaced (constant-width)
              fonts.

       -m     Prevent negative left italic correction values.  Roman  font  files  distributed  with
              groff were created with -i0 -m to improve spacing with eqn(1).

       -n     Don't  output  a ligatures command for this font; use with monospaced (constant-width)
              fonts.

       -s     The font is special.  The effect of this option is to add the special command  to  the
              font file.

       -v     Print version and exit.

       -x     Don't use the built-in Adobe Glyph List.

FILES
       /usr/share/groff/1.22.4/font/devps/DESC
              Device description file.

       /usr/share/groff/1.22.4/font/devps/F
              Font description file for font F.

       /usr/share/groff/1.22.4/font/devps/download
              List of downloadable fonts.

       /usr/share/groff/1.22.4/font/devps/text.enc
              Encoding used for text fonts.

       /usr/share/groff/1.22.4/font/devps/generate/textmap
              Standard mapping.

SEE ALSO
       Groff: The GNU Implementation of troff, by Trent A. Fisher and Werner Lemberg, is the primary
       groff manual.  Section “Using Symbols” may be of particular note.  You can browse it interac‐
       tively with “info '(groff)Using Symbols'”.

       groff(1), gropdf(1), grops(1), groff_font(5), perl(1)



groff 1.22.4                                23 March 2022                                AFMTODIT(1)