2011/7/8 Peter Davis <pfd at pfdstudio.com>: > http://ghostscript.com/doc/current/Commprod.htm Cool. Finally someone who clearly defines what the GPL means for them. Note that XeTeX is most likely also under the GPL: http://sourceforge.net/tracker/?func=detail&aid=3304292&group_id=194926&atid=951385 Best Martin