This is Aladdin Ghostscript, the non-GPL version that comes with a licence different from the GPL. Read the file PUBLIC in the work/gsX.Y directory or in ${PREFIX}/share/ghostscript/X.Y/doc/PUBLIC after installation for details ! Ghostscript is the well-known PostScript interpreter which is available for all common and most esoteric platforms and supports many different printers and some displays. Official ghostscript homepage, see: http://www.cs.wisc.edu/~ghost/index.html This FreeBSD port includes two useful add-on packages: o Support for HP DeskJet 670, 690, 850, 855, 870, 890, 1100 and 1600, see announcement on http://www.erdw.ethz.ch/~bonk/hp850/hp850.html o Support for pdfencrypt, see description on http://www.ozemail.com.au/~geoffk/pdfencrypt/ Thomas Merz has written a Ghostscript manual in PDF format: http://www.cs.wisc.edu/~ghost/merz.html The manual is also available in German language, see: http://www.muc.de/~tm/free/free.html