According to Artifex, as of version 9.03, the commercial version of Ghostscript can no longer be freely distributed for commercial purposes without purchasing a license, though the (A)GPL variant allows commercial distribution provided all code using it is released under the (A)GPL. Ghostscript is currently owned by Artifex Software and maintained by Artifex Software employees and the worldwide user community. With version 8.54 in 2006, both development branches were merged again, and dual-licensed releases were still provided. Later, Deutsch formed Aladdin Enterprises to dual-license Ghostscript also under a proprietary license with an own development fork: "Aladdin Ghostscript" under the Aladdin Free Public License (which, despite the name, is not a free software license, as it forbids commercial distribution) and "GNU Ghostscript" distributed with the GNU General Public License.
Ghostscript was originally written by L. Peter Deutsch for the GNU Project, and released under the GNU General Public License in 1986.
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