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GNU Ghostscript
   Copyright (C) 1990, 1992, 1993, 1994 Aladdin Enterprises.  All rights reserved.
  
  This file is part of GNU Ghostscript.
  
  GNU Ghostscript is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY.  No author or distributor accepts responsibility to
  anyone for the consequences of using it or for whether it serves any
  particular purpose or works at all, unless he says so in writing.  Refer
  to the GNU Ghostscript General Public License for full details.
  

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This file, psfiles.doc, describes the .ps files distributed with
Ghostscript, other than fonts.

For an overview of Ghostscript and a list of the documentation files, see
README.

System files
------------

gs_init.ps - Ghostscript reads this automatically when it starts up.  It
contains definitions of many standard procedures and initialization for a
wide variety of things.

gs_btokn.ps - gs_init.ps reads this in if the btoken feature is included in
the configuration.  It provides support for binary tokens.

gs_ccfnt.ps - gs_init.ps reads this in if the ccfonts feature is included
in the configuration.  It provides support for compiled fonts.

gs_cmdl.ps - This file is not used yet.  Eventually it will replace C code
that parses the Ghostscript command line.

gs_fonts.ps - gs_init.ps reads this in.  It initializes Ghostscript's font
machinery and provides some utility procedures that work with fonts.

gs_kanji.ps - This file provides support for the Wadalab free Kanji font.

gs_pfile.ps - This file provides runtime support for packed fonts.

gs_statd.ps - gs_init.ps reads this in.  It creates a dummy statusdict and
some other environmental odds and ends for the benefit of PostScript files
that really want to be printed on a LaserWriter.

gs_dps1.ps - gs_init.ps reads this in if the dps feature is included in
the configuration.  It provides support for various Display PostScript and
Level 2 features.

gs_lev2.ps - gs_init.ps reads this in if the Ghostscript interpreter
includes Level 2 PostScript functions.  It contains definitions of
procedures and miscellaneous initialization for the Level 2 functions.

gs_res.ps - gs_init.ps reads this in if the Level 2 resource machinery is
included.  Currently, this is the case for all Level 2 configurations.

gs_type0.ps - gs_init.ps reads this in if the Ghostscript interpreter
includes composite (Type 0) font capability.

gs_type1.ps - gs_init.ps reads this in if the Ghostscript interpreter
includes Type 1 font capability (which it normally does).

gs_*_e.ps - These files define the Encodings known to Ghostscript.  All of
them except gs_std_e.ps and gs_iso_e.ps are loaded only if referenced.

Art
---

chess.ps - A black-and-white chessboard.

golfer.ps - A gray-scale picture of a stylishly dressed woman swinging a
golf club.

escher.ps - A colored version of a hexagonally symmetric Escher drawing of
interlocking butterflies.  Can be printed on monochrome devices, with
somewhat less dramatic results.

cheq.ps - A chessboard "font" used by chess.ps (obtained from the Adobe
file server).

snowflak.ps - A rectangular grid of intricate colored snowflakes.
(Renders very slowly.)

colorcir.ps - A set of nested ellipses made up of colored bars.

tiger.ps - A dramatic colored picture of a tiger's head.

Utilities
---------

For more information on these utility programs, see the comments at the
beginning of the files.  The ones marked with * have batch files or shell
scripts of the same name (e.g., bdftops, bdftops.bat) to invoke them
conveniently.

bench.ps - a file useful for running benchmarks.

* bdftops.ps - a utility for converting BDF fonts to outline form: see
fonts.doc for more information.

* gslp.ps - a utility for doing "line printing" of plain text files.

impath.ps - a utility for reconstructing outlines from bitmap images,
used by bdftops.

landscap.ps - a file that you can put in front of your own files to get
them rendered in landscape mode.

level1.ps - a file that turns off any Level 2 features.

packfile.ps - a utility for compressing fonts into a single file.

prfont.ps - a utility to print a font catalog.

* ps2ascii.ps - a utility for extracting the ASCII text from PostScript
source files.  It redefines many operators.  For more information, see the
comments in the file.

ps2ai.ps - a utility for converting an arbitrary PostScript file into a
form compatible with Adobe Illustrator.

* ps2epsi.ps - a utility for converting an arbitrary PostScript file into
EPSI form.

* pstoppm.ps - a utility for rendering PostScript files onto PPM (bitmap)
files.

quit.ps - a file containing just the word "quit".  (The -c switch now makes
this unnecessary; this file exists for backward compatibility.)

showpage.ps - a file containing just the word "showpage".  (The -c switch
now makes this unnecessary; this file exists for backward compatibility.)

viewgif.ps - a utility for displaying GIF files.

waterfal.ps - a utility to print a "waterfall" of fonts at different
sizes.

Development tools
-----------------

decrypt.ps - a utility for decrypting the eexec section of a font.

markpath.ps - a utility for showing the points on a path.

mergeini.ps - a utility for merging all the initialization files into
a single file.

pcharstr.ps - a utility for printing out the CharStrings and Subrs in a
Type 1 font.

ppath.ps - a couple of utilities for printing out the current path, for
debugging.

traceop.ps - a utility for tracing uses of any procedure or operator
for debugging.

type1enc.ps - the Type 1 font format encryption and decryption
algorithms written in PostScript.

unprot.ps - a prologue to disable access checking.

winmaps.ps - a utility for creating mappings between the Adobe encodings
and the Microsoft Windows character sets.

wrfont.ps - a utility for writing out an unprotected Type 1 font, such as
the standard Ghostscript fonts.

Odds and ends
-------------

lines.ps - a test program for line joins and caps.

type1ops.ps - the Type 1 font format opcodes.

 

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