 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.Artifex's point of view on "aggregated software" was challenged in court for MuPDF.In February 2013, Ghostscript changed its license from GPLv3 to GNU AGPL in version 9.07, which raised license compatibility questions for example by Debian.