This document sets forth the conditions under which Ghostscript may be distributed in a commercial context: under a written license from Artifex Software Inc., the copyright holder's exclusive commercial licensing partner, or under certain other very limited conditions.
For other information, see the Ghostscript overview.
Ghostscript is a copyrighted work whose copyright is owned by artofcode LLC. Some versions of Ghostscript are distributed freely under the name AFPL Ghostscript or (for older versions) Aladdin Ghostscript; these versions are always distributed with a license, called the Aladdin Free Public License (also known as the AFPL), which permits redistribution under certain conditions. These conditions will almost always be met easily by individuals in their personal use of AFPL Ghostscript. AFPL Ghostscript may be used freely, including by commercial entities for evaluation or unsupported internal use. However, distribution for commercial purposes of Ghostscript, or anything containing or derived from Ghostscript in whole or in part, generally requires a written commercial license from Artifex Software Inc., the sole entity authorized by the copyright holder to grant such licenses. More specifically, the AFPL states:
Distribution of the Program or any work based on the Program by a commercial organization to any third party is prohibited if any payment is made in connection with such distribution, whether directly (as in payment for a copy of the Program) or indirectly (as in payment for some service related to the Program, or payment for some product or service that includes a copy of the Program "without charge"; these are only examples, and not an exhaustive enumeration of prohibited activities). However, the following methods of distribution involving payment shall not in and of themselves be a violation of this restriction:
- Posting the Program on a public access information storage and retrieval service for which a fee is received for retrieving information (such as an on-line service), provided that the fee is not content-dependent (i.e., the fee would be the same for retrieving the same volume of information consisting of random data).
- Distributing the Program on a CD-ROM, provided that the files containing the Program are reproduced entirely and verbatim on such CD-ROM, and provided further that all information on such CD-ROM be redistributable for non-commercial purposes without charge.
The intent of the exception provided in clause (i) is to allow commercial organizations operating an FTP server or a bulletin board to distribute AFPL Ghostscript freely from it, provided that:
Similarly, the exception in clause (ii) is intended to allow inclusion of AFPL Ghostscript on "freeware" CD-ROMs that contain only material that is in the public domain, or is freely redistributable provided only that a copyright notice is retained (such as the Independent JPEG Group libraries), or is distributed under some other kind of license allowing free redistribution such as the GNU General Public License.
If you want to distribute software in a commercial context that incorporates Ghostscript and you do not want to meet these conditions, you should contact Artifex Software to find out about commercial licensing. Commercial licenses involve a (negotiated) payment, and includes support and other benefits. These are the only ways you legally can distribute AFPL Ghostscript or anything containing AFPL Ghostscript: either by distributing Ghostscript under the requirements of the AFPL, or by getting a commercial license from Artifex Software.
For commercial licensing, please contact:
Artifex Software Inc.
454 Las Gallinas Ave., suite 108
San Rafael, CA 94903 U.S.A.
If you have questions about the information in this document, please contact:
940 Tyler St. Studio 6
Benicia CA 94510 U.S.A.
Older versions of Ghostscript (usually the previous major release of AFPL Ghostscript) are distributed with a license called the GNU General Public License (also known as the "GNU License", the "GPL", or "copyleft"), which is similar to the AFPL in requiring source disclosure, but also allows distribution with commercial products under certain conditions. These versions are identified as "GPL Ghostscript" or "GNU Ghostscript." The remainder of this section applies only to versions identified explicitly as GPL or GNU Ghostscript versions; the generic name Ghostscript, when applied to versions above 4.03, refers to AFPL Ghostscript, which is governed by the Aladdin Free Public License, not the GPL.
The full GPL is included under the name COPYING in the GPL Ghostscript fileset, and can also be obtained directly from the Free Software Foundation:
Free Software Foundation, Inc. (FSF)
59 Temple Place, Suite 330
Boston, MA 02111-1307 U.S.A.
+1-617-542-2652 fax (including Japan):
The GPL gotten directly from the FSF or the contents of the COPYING file are authoritative, but for those unfamiliar with the GPL, we now summarize its provisions.
Provision (2) effectively prevents the development of proprietary commercial products that incorporate GPL Ghostscript without a commercial license as a part, since these are "derived works" in the legal sense.
Questions have arisen at times in particular cases regarding provision (3) as to whether GPL Ghostscript is "aggregated" with other parts of a commercial product, or whether the product has become a "derived work." Normally, combining GPL Ghostscript with another piece of software creates a "derived work"; we consider GPL Ghostscript to be "aggregated" with another piece of software, which we will refer to as "the application", only if all of the following conditions are met:
Regarding this last point, the GPL clearly intends that if the distributor only offers to provide the GPL Ghostscript source code (as opposed to actually distributing the source code with every copy of the application), then they must deliver the source code in a timely way to anyone requesting it.
The GPL makes it clear that if someone receives GPL Ghostscript only in its GPL-licensed form, they only have a right to distribute it if they comply with the GPL. artofcode LLC, as the copyright holder, takes this requirement very seriously, and will, if necessary, take legal action to ensure that anyone distributing GPL Ghostscript with the GPL complies with the conditions set forth above.
Copyright © 1996-2004 artofcode LLC. All rights reserved.
This file is part of AFPL Ghostscript. See the Aladdin Free Public License (the "License") for full details of the terms of using, copying, modifying, and redistributing AFPL Ghostscript.
Ghostscript version 8.53, 20 October 2005