📄 new-user.htm
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<title>Background information for new users of Ghostscript</title>
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Background information for new users of Ghostscript
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<h2>Table of contents</h2>
<blockquote><ul>
<li><a href="#Overview">An overview of Ghostscript</a>
<ul>
<li><a href="#Find_Ghostscript">How is Ghostscript licensed? Where can I find it?</a>
<ul>
<li><a href="#Aladdin_gs">Aladdin Ghostscript</a>
<li><a href="#GNU_gs">GNU Ghostscript</a>
<li><a href="#Commercial_gs">Commercial versions</a>
</ul>
<li><a href="#Third-party_libraries">Libraries obtained from other parties</a>
<li><a href="#Support">What if I want support?</a>
<li><a href="#Commercial_use">What about commercial use?</a>
<li><a href="#Platforms">What platforms does Ghostscript run on?</a>
</ul>
<li><a href="#Related_work">Related work</a>
<ul>
<li><a href="#PDF_encryption">PDF encryption</a>
<li><a href="#Previewers">Previewers</a>
<ul>
<li><a href="#Previewer_X">Previewers for X Windows</a>
<li><a href="#Previewer_DOS-Win">Previewers for DOS and MS Windows</a>
<li><a href="#Previewer_Linux">A previewer for Linux</a>
</ul>
<li><a href="#Fonts">Fonts</a>
<li><a href="#Ancillary_programs">Ancillary programs</a>
</ul>
<li><a href="#Need_help">If you need help</a>
<ul>
<li><a href="#Reporting_bugs">Reporting bugs</a>
</ul>
<li><a href="#Aladdin">Contacting Aladdin Enterprises</a>
<li><a href="#How_to_help">Things you can do to help</a>
<li><a href="#Acknowledgments">Acknowledgements</a>
</ul></blockquote>
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<p>For other information, see the <a href="Readme.htm">Ghostscript
overview</a>.
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<h1><a name="Overview"></a>An overview of Ghostscript</h1>
<p>
Ghostscript is the name of a set of software that provides:
<ul>
<li>an interpreter for the <b>PostScript</b><small><sup>TM</sup></small>
language and the Adobe <b>Portable Document Format</b> (<b>PDF</b> --
sometimes confused with Acrobat, Adobe's PDF browser and editor product),
and
<li>The Ghostscript library, a set of procedures to implement the graphics
and filtering capabilities that are primitive operations in the PostScript
language and in PDF.
</ul>
<p>
In simple terms, this means that Ghostscript can read a PostScript or PDF
file and display the results on the screen or convert them into a form you
can print on a non-PostScript printer. Especially together with several
popular <a href="#Previewers">previewers</a>, with Ghostscript you can view
or print an entire document or even isolated pages, even if your computer
doesn't have Display PostScript and your printer doesn't handle PostScript
itself.
<h2><a name="Find_Ghostscript"></a>How is Ghostscript licensed? Where can I find it?</h2>
<p>
Ghostscript is a copyrighted work (Aladdin Enterprises owns the copyright);
it is not shareware or in the public domain. Different versions of it are
distributed with three different licenses:
<h3><a name="Aladdin_gs"></a>Aladdin Ghostscript</h3>
<p>
Versions entitled "Aladdin Ghostscript" are distributed with a license
called the <a href="Public.htm">Aladdin Free Public License</a> that allows
free use, copying, and distribution by end users, but does not allow
commercial distribution. You can get the current version of Aladdin
Ghostscript with this license from
<blockquote>
<a href="ftp://ftp.cs.wisc.edu/ghost/aladdin/">ftp://ftp.cs.wisc.edu/ghost/aladdin/</a>gs###/ghostscript#.##
</blockquote>
<p>
or under AFS by direct reference to
<blockquote>
/afs/cs.wisc.edu/public/ghost/aladdin/gs###/ghostscript#.##
</blockquote>
<p>
where "#.##" and "###" are the version number with and without punctuation,
for instance "5.10" and "510". You can also search for ftp access to
Ghostscript at other sites, perhaps nearer your site, using the excellent
ftp search service
<blockquote>
<a href="http://ftpsearch.ntnu.no/">http://ftpsearch.ntnu.no/</a>
</blockquote>
<p>
A general search engine like
<blockquote>
<a href="http://altavista.digital.com/">http://altavista.digital.com/</a>
</blockquote>
<p>
may also be useful, but in searching for files is likely to provide many
unusable references mixed in among the useful ones.
<p>
If you haven't convenient access to the Internet, you can order Aladdin
Ghostscript on a CD along with some useful related programs and
documentation. <b>Please note</b> that this is not "commercial licensing":
you are still getting freely redistributable software, with no support and
no warranty. For more information write to <a href="#GSview">Russell
Lang</a> or see
<blockquote>
<a href="http://www.cs.wisc.edu/~ghost/cd.html">http://www.cs.wisc.edu/~ghost/cd.html</a>
</blockquote>
<h3><a name="GNU_gs"></a>GNU Ghostscript</h3>
<p>
Versions entitled "GNU Ghostscript" are distributed with the GNU
<a href="http://www.gnu.org/copyleft/gpl.html">General Public License</a>,
which allows free use, and free copying and redistribution under certain
conditions (including, in some cases, commercial distribution). GNU
Ghostscript versions are released more than a year after the corresponding
Aladdin Ghostscript version. You can always get the current version of GNU
Ghostscript by Internet FTP from
<blockquote>
<a href="ftp://ftp.cs.wisc.edu/ghost/gnu/">ftp://ftp.cs.wisc.edu/ghost/gnu/</a>gs###/ghostscript#.##
</blockquote>
<p>
or under AFS by direct reference to
<blockquote>
/afs/cs.wisc.edu/public/ghost/gnu/gs###/ghostscript#.##
</blockquote>
<p>
or from any of the many GNU distribution sites. The GNU home ftp site is
<blockquote>
<a href="ftp://ftp.gnu.org/pub/gnu/">ftp://ftp.gnu.org/pub/gnu/</a>
</blockquote>
<p>
For a more complete list of sites, including sites outside the U.S., write
to <a href="mailto:gnu@gnu.org">gnu@gnu.org</a>. The
<a href="Commprod.htm#FSF-address">Free Software Foundation</a> makes GNU
Ghostscript available on tape and CD-ROM.
<p><a name="CTAN_gs"></a>
Both Aladdin and GNU versions are also available from sites in the
Comprehensive TeX Archive Network (CTAN), in a tree based at
/tex-archive/support/ghostscript/, which you can find at these principal
CTAN distribution sites ("participating hosts") as of mid-1998:
<blockquote><table cellpadding=0 cellspacing=0>
<tr> <td><a href="ftp://ctan.tug.org/tex-archive/support/ghostscript/">ftp://ctan.tug.org/tex-archive/support/ghostscript/</a>
<td>
<td>Massachusetts, U.S.A.
<tr> <td><a href="ftp://ftp.dante.de/tex-archive/support/ghostscript/">ftp://ftp.dante.de/tex-archive/support/ghostscript/</a>
<td>
<td>Deutschland
<tr> <td><a href="ftp://ftp.tex.ac.uk/tex-archive/support/ghostscript/">ftp://ftp.tex.ac.uk/tex-archive/support/ghostscript/</a>
<td>
<td>United Kingdom
</table></blockquote>
<p>
CTAN has more than fifty mirror sites around the world. For information
about CTAN sites, including how to use them over the World Wide Web, get
the file <b><tt>CTAN.sites</tt></b> from any CTAN server, for
instance
<blockquote>
<a href="ftp://ctan.tug.org/tex-archive/CTAN.sites">ftp://ctan.tug.org/tex-archive/CTAN.sites</a>
</blockquote>
<h3><a name="Commercial_gs"></a>Commercial versions</h3>
<p>
Finally, Ghostscript is also available for commercial licensing. See
"<a href="#Commercial_use">What about commercial use?</a>" for details.
<p>
Aladdin Ghostscript and GNU Ghostscript come with <b>NO WARRANTY</b> and
<b>NO SUPPORT</b>. If you have a question or a bug to report, please see
"<a href="#Need_help">If you need help</a>" for information about what to
do.
<hr>
<h2><a name="Third-party_libraries"></a>Libraries obtained from other parties</h2>
<p>
The Ghostscript source code distribution, and the Ghostscript executable
code, include libraries obtained from other parties. All the source files
mentioned in this section are in the Ghostscript and third-party library
source kits. The documentation of <a href="Make.htm">how to build
Ghostscript</a> tells <a href="Make.htm#Acquiring">where to get these
libraries</a> and <a href="Make.htm#Unpack">how to unpack them</a>.
<blockquote><dl>
<dt>The <a href="http://www.ijg.org/">Independent JPEG Group</a> (IJG)
library
<dd>The executable versions of Ghostscript are based in part on the work of
the Independent JPEG Group. For more information, see
<b><tt>jpeg.mak</tt></b> in the main Ghostscript source directory and
<b><tt>README</tt></b> in the <b><tt>jpeg</tt></b> subdirectory of the
Ghostscript source code
<dt>The <a href="http://www.cdrom.com/pub/png/">Portable Network
Graphics</a> (PNG) library created by Dave Martindale, Guy Eric Schalnat,
Paul Schmidt, and Tim Wegner, of Group 42, Inc.
<dd>For more information, see <b><tt>libpng.mak</tt></b> in the main
Ghostscript source directory, and <b><tt>README</tt></b> and
<b><tt>png.h</tt></b> in the <b><tt>libpng</tt></b> subdirectory of the
Ghostscript source code.
<dt>The <a href="http://www.cdrom.com/pub/infozip/zlib/">zlib</a> library
created by Jean-loup Gailly and Mark Adler
<dd>For more information, see <b><tt>zlib.mak</tt></b> in the main
Ghostscript source directory, and <b><tt>README</tt></b> in the
<b><tt>zlib</tt></b> subdirectory of the Ghostscript source code.
</dl></blockquote>
<p>
These libraries do <b>NOT</b> fall under either the GNU License or the
Aladdin Free Public License; they come with their own licenses,
which also allow free use and redistribution under appropriate
circumstances and which appear in the files mentioned just above. These
libraries are entirely original works of their respective authors, and are
provided <b>AS IS</b> with <b>NO WARRANTY</b> and <b>NO SUPPORT</b>.
<hr>
<h2><a name="Support"></a>What if I want support?</h2>
<p>
Neither Aladdin Enterprises nor any organization known to us currently
offers Ghostscript support for end-users -- that is, for people or
companies who just want to use Ghostscript and not redistribute it as part
of a product. Companies that include Ghostscript in their products under a
commercial license (see next section) may offer support to end-users, but
it would be support for the company's own product, not for Ghostscript
<em>per se</em>.
<p>
Nothing in the GNU or Aladdin Free licenses prevents anyone from providing
support for Ghostscript, either free or commercial. Aladdin would be happy
to include in the Ghostscript documentation the contact information for
anyone who wants to offer such support.
<hr>
<h2><a name="Commercial_use"></a>What about commercial use?</h2>
<p>
GNU Ghostscript may not be incorporated into commercial products which
forbid copying or for which customers cannot obtain source code for no more
than the cost of reproduction, although it may be distributed
("aggregated") with commercial products; Aladdin Ghostscript may not be
incorporated into commercial products at all, and may be distributed
commercially only under extremely limited circumstances. However,
Ghostscript is also available for commercial licensing, which in addition
to the right to incorporate Ghostscript into commercial products includes
support, a limited warranty, high-quality fonts, and other benefits. For
more information about commercial licensing of Ghostscript, please contact
Aladdin Enterprises' commercial distribution partner, the only entity
legally authorized to distribute Ghostscript <em>per se</em> on any terms
other than the GNU or Aladdin free licenses:
<blockquote><address>
Licensing Information<br>
Artifex Software Inc.<br>
454 Las Gallinas Avenue, suite 108<br>
San Rafael, CA 94903 U.S.A.<br>
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