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1991-10-26
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Copyright (C) 1989, 1990, 1991 Aladdin Enterprises. All rights reserved.
Distributed by Free Software Foundation, Inc.
This file is part of Ghostscript.
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 Ghostscript General Public License for full details.
Everyone is granted permission to copy, modify and redistribute
Ghostscript, but only under the conditions described in the Ghostscript
General Public License. A copy of this license is supposed to have been
given to you along with Ghostscript so you can know your rights and
responsibilities. It should be in a file named COPYING. Among other
things, the copyright notice and this notice must be preserved on all
copies.
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This file describes version 2.3 of Ghostscript.
********
******** An overview of Ghostscript ********
********
Ghostscript is the name of a set of software that provides:
- An interpreter for the Ghostscript language, which very
closely resembles the PostScript (TM) language; and
- A set of C procedures (the Ghostscript library) that
implement the graphics capabilities that appear as primitive
operations in the Ghostscript language.
The Ghostscript language interpreter and library are written entirely
in C, with some assembly-language accelerators for MS-DOS platforms.
Currently, Ghostscript is known to run on the following platform
families:
- IBM PC and compatibles with EGA, VGA, or compatible graphics
(256K frame buffer required) under MS-DOS 3.1 or 3.3;
- A wide variety of Unix systems using X Windows version 11,
release 3 and 4, including Sun-3, Sun-4, Sun-386i,
Sun SPARCStation 1; generic 80386 machines running 386/ix;
H-P 9000/300 and 9000/800; DECStation 2100 and 3100; VAX
running Ultrix; Sequent Symmetry; Convex C1 and C2;
- Sun workstations (Sun-3, SPARC, Sun-386i) running SunView;
- VAX, VMS with X11R3, gcc and DEC C compiler (DEC C compiler
version 3.1 or later is required).
It is very likely that Ghostscript will run under other versions of
MS-DOS, and other versions of Unix that support X11, but it has not
been tested in these environments. Ghostscript does NOT run well on
PC-compatibles with Hercules display cards: text and graphics output
interfere with each other.
********
******** Documentation overview ********
********
All the file names mentioned in the documentation, except for README,
are in lower case, which is the usual convention for Unix systems.
On MS-DOS systems, all file names are actually upper-case.
Files of interest to most users (both previous and new)
-------------------------------------------------------
> README - this file.
> readme.doc - information about problems and new features in the
current release.
If you have used a previous release of Ghostscript, you should also
read any more recent sections of history.doc.
Files of particular interest to new users
-----------------------------------------
> fonts.doc - information about the fonts distributed with Ghostscript.
> language.doc - A description of the Ghostscript language.
> make.doc - how to install, compile and link Ghostscript.
> psfiles.doc - information about the .ps files distributed with
Ghostscript (other than fonts).
> use.doc - information about to use Ghostscript.
Files of interest to fewer users
--------------------------------
> drivers.doc - the interface between Ghostscript and device drivers.
> hershey.doc - information about the Hershey fonts, which are the
basis of some of the Ghostscript fonts.
> history.doc - history of changes in Ghostscript releases.
> humor.doc - a humorous comment on Ghostscript contributed by a net.person.
> lib.doc - information about the Ghostscript library.
> man.doc - a possible Un*x 'man' page for Ghostscript.
********
******** Trouble reporting ********
********
If you have problems with Ghostscript, contact
Aladdin Enterprises
P.O. box 60264
Palo Alto, CA 94306
(415)322-0103
...{uunet,decwrl}!aladdin!ghost
ghost@aladdin.com
The best times to call on the phone are 8:30-11:30 AM Monday-Friday;
at other times you may get an answering machine. Only use the
Internet if your organization or activity allows this -- the UUCP
path works just as well, but may take longer.
If you report a problem, please specify which version of Ghostscript
you are running, and the hardware, operating system, window system,
and C compiler you are using, and be as specific as you can about the
problem -- this will help us a lot in tracking it down. We want
Ghostscript to be a high-quality product, and will do our best to fix
any reported problem.
Aladdin Enterprises owns or has access to the following hardware and
software:
80486 PC, MS-DOS 3.30, Borland C++ 2.0;
color SuperVGA display, Epson-compatible printer
(the printer also is compatible with the IBM Proprinter);
H-P PaintJet; Canon BubbleJet
SPARCstation, SunOS 4.0, cc and gcc, X11R4 and SunView;
both monochrome and color displays
DECstation, Ultrix
If your problem turns out to be specific to some other hardware or
software configuration, it may take longer to track down, since we
will have to rely on other users to help.
********
******** Authors ********
********
Ghostscript was originally created, and is still primarily developed
and maintained, by L. Peter Deutsch, proprietor of Aladdin
Enterprises.
The following users (in alphabetical order) have contributed
substantially to improving Ghostscript:
Hitoshi Aida (for help with the SunView driver),
William Bader (for several drivers and bug reports);
Karl Berry and Kathy Hargreaves (for helping create the fonts
distributed with Ghostscript),
Phil Conrad (for originating the PPM utilities, and lots of
bug reports),
Michel Dagenais (for major help with the DeskJet driver),
Gershon Elber (for improvements to the BGI driver),
Mike Ferrara (for help with the LaserJet driver and HP-UX),
Paul Haeberli (for the ideas behind better color selection
and trapezoid fill algorithms),
Richard Keeney (for help with the SunView driver),
Eleftherios Koutsofios (for help with the SunView driver),
Markku Koppinen (for a better circle-to-curve algorithm),
Daniel Newman (for major help with VMS),
Marc Paquette (for the original PaintJet driver),
Hal Peterson (for major help with BDF fonts),
Tom Quinn (for the Canon LBP-8II driver);
Jerry Roylance (for help with statusdict),
Jan Sanislo (for a subtle fix to the memory manager),
Clemens Schrimpe (for help with accented characters),
Mike Smolenski (for the Sony drivers),
Snoopy (for major help with Hershey fonts, and many other
contributions),
Michael Sweet (for help with the high-density Epson driver),
Gregg Townsend (for the dithering algorithm);
Christian Tschudin (for fixes to the virtual memory package,
and for the original BubbleJet driver);
Ulrich Mueller (for the LN03 driver);
Allan Wax (for the AT&T 6300 modification to the BGI driver);
Elizabeth Zwicky (for some very challenging examples).
The following people have also helped out by beta testing, by
reporting bugs, or in other ways:
Vikas Aggarwal, Michael Almond,
Malcolm Bennett,
Jim Collins,
Art Dederick, Paul DuBois,
Toerless Eckert,
Mark Friedman, Richard Foulk,
Glenn Geers, Dave Goldblatt, Dirk Grunwald,
Lars Haakedal, Adam Hammer, George Hartzell, Thomas Hiller,
Mike Hoffmann,
Brad Jones, Terry Jones,
David Keppel,
Russell Lang, Anthony Lee, John Lundin Jr., Lee McLoughlin,
Stergios Marinopoulos, Herb Martin, David Maynard,
Doug McDonald, Rich Murphey,
Russ Nelson,
Peter Phillips,
Mark Rawling, Philippe Robert, Tomas Rokicki, Wolfgang Rupprecht,
Bill Schelter, Bakul Shah,
Erik Talvola, Tim Theisen,
Amanda Walker, Peter Wan, Carsten Wiethoff, Carl Witty,
Frank Yellin,
Jamie Zawinski.
If your name appears on the above list and I've forgotten a
particular contribution you made, or if it doesn't appear at all,
please forgive me: just remind me, and you will be properly
acknowledged in the next release.
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PostScript is a trademark of Adobe Systems, Incorporated.