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GSFTOPK(1)									       GSFTOPK(1)

NAME
       gsftopk - render a ghostscript font in TeX pk form

SYNOPSIS
       gsftopk [-i path] [-q] [-t] [--debug=n] [--dosnames] [--interpreter=path] [--mapline=line]
       [--mapfile=file] [--quiet] [--test] [--help] [--version] font dpi

ARGUMENTS
       font  Name of the font to be created.

       dpi   Desired resolution of the font to be created, in dots per inch.  This may be a  real
	     number.

DESCRIPTION
       gsftopk	is  a program which calls up the ghostscript program gs(1) to render a given font
       at a given resolution.  It packs the resulting characters into  the  pk	file  format  and
       writes  them to a file whose name is formed from the font name and the resolution (rounded
       to the nearest integer).  The font may be in any format acceptable to Ghostscript, includ-
       ing .pfa, .pfb, .gsf, and .ttf files.

       This  program  should  normally be called by a script, such as mktexpk, to create fonts on
       demand.

       gsftopk obtains the character widths from the .tfm file, which must exist in the  standard
       search  path.   It also must be able to find the font in a map file (such as psfonts.map),
       formatted as in dvips(1)), unless the --mapline option is used.	The set of map	files  is
       given  by  the  --mapfile  option,  or  in  the	files config.ps, $HOME/.dvipsrc, and con-
       fig.gsftopk (as would be used by dvips -Pgsftopk).

       The following pk "specials" are added at the end of the output file, to provide an  inter-
       nal check on the contents of the file: "jobname=font", "mag=1", "mode=modeless", and "pix-
       els_per_inch=dpi".  This is in accordance with the TeX Directory Standard (TDS).

OPTIONS
       --debug=n
	      Set the Kpathsea debug flags according to the integer n.

       --dosnames
	      Use a name of the form font.pk instead of font.dpipk.

       -h, --help
	      Print a brief help synopsis and exit.

       -i path, --interpreter=path
	      Use path as the Ghostscript interpreter.

       --mapfile=file
	      Use file to look for the map information for font.  This should be the full name of
	      the file (in other words, no path searching algorithms are applied).

       --mapline=line
	      Use  line  instead  of  looking for an entry in a map file.  The first word of line
	      must match font.

       -q, --quiet
	      Operate quietly; i.e., without writing any messages to the standard output.

       -t, --test
	      Test run:  return zero status if the font can be found  in  the  map  file(s),  and
	      nonzero status if it cannot.  If this option is specified, then the dpi argument is
	      optional (since the font will not be generated).

       -v, --version
	      Print the version number and exit.

ENVIRONMENT VARIABLES
       DVIPSRC	       Name of file to read instead of $HOME/.dvipsrc.	This should be	the  full
		       name  of  the  file  (in  other	words,	no  path searching algorithms are
		       applied).

       GSFTOPKFONTS    See TFMFONTS.

       GSFTOPKHEADERS  See TEXPSHEADERS.

       PSHEADERS       See TEXPSHEADERS.

       TEXCONFIG       Colon-separated list of paths to search for map files.  An extra colon  in
		       the list will include the compiled-in default paths at that point.  A dou-
		       ble slash will enable recursive subdirectory searching at  that	point  in
		       the path.

       TFMFONTS        Colon-separated	list of paths to search for the .tfm file associated with
		       the font.  Double slashes and extra colons behave as with TEXCONFIG.  This
		       information  may  also be supplied by using the environment variables TFM-
		       FONTS or GSFTOPKFONTS.  These environment variables  are  checked  in  the
		       order  GSFTOPKFONTS,  TFMFONTS,	TFMFONTS; the first one (if any) having a
		       value is used.

       TEXPSHEADERS    Colon-separated list of paths to search for the	Ghostscript  driver  file
		       render.ps  and  for any PostScript header or font files (.enc, .pfa, .pfb,
		       .gsf, or .ttf files).  Double slashes and extra colons behave as with TEX-
		       CONFIG.	 This  information  may also be supplied by using the environment
		       variables PSHEADERS or GSFTOPKHEADERS.  These  environment  variables  are
		       checked	in  the  order GSFTOPKHEADERS, TEXPSHEADERS, PSHEADERS; the first
		       one (if any) having a value is used.

       TFMFONTS        See TFMFONTS.

CONFIGURATION
       In order to determine the set of map files to be used and the path for finding  PostScript
       files,  gsftopk	reads,	in order, the files config.ps, .dvipsrc, and config.gsftopk.  The
       files config.ps and config.gsftopk are searched for using the environment variable TEXCON-
       FIG, the Kpathsea configuration file, or the compiled-in default paths.	The file .dvipsrc
       is searched for in the user's home directory.

       These files are in the same format as for dvips (as well as being in the same  locations).
       The entries used by gsftopk are as follows.

       H path Indicates  that the Ghostscript driver file render.ps and the PostScript header and
	      font files are to be searched for using path.

       p file Indicates that the list of map files is to be erased and replaced by file.

       p +file
	      Indicates that file is to be added to the list of map files.

       All other entries are ignored.

       This is similar to the handling of these options when running dvips -Pgsftopk.	For  more
       details, see the Kpathsea manual.

BUGS
       gsftopk	sometimes  has	trouble  with fonts with very complicated characters (such as the
       Seal of the University of California).  This is because gsftopk uses the charpath operator
       to  determine  the  bounding  box of each character.  If the character is too complicated,
       then old versions of Ghostscript fail, causing gsftopk to terminate with an error message

	      Call to gs stopped by signal 10

       (The number may vary from system to system; it corresponds to a bus error or  a	segmenta-
       tion fault.)  The best way to fix this bug is to install a current version of ghostscript.
       As an alternative, gsftopk can be instructed to use the bounding  box  provided	with  the
       font  (if  one  exists) instead of finding a bounding box for each character.  To do this,
       include the string

	      /usefontbbox true def

       in the font map file; e.g.,

	      ucseal "/usefontbbox true def"

       This will not affect use of the font by dvips.

SEE ALSO
       gs(1), gftopk(1), tex(1), xdvi(1), dvips(1)

AUTHOR
       Written by Paul Vojta.  This program was inspired by Karl Berry's gsrenderfont.

MODIFICATIONS
       Modified by Yves Arrouye to use Karl Berry's Kpathsea library.

					 28 November 1998			       GSFTOPK(1)
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