[magick-developers] Combine JBIG2 files into PDF

[duc.sequere.aut.de.via.decede at imagemagick.org]

> I know that PDF files can contain JBIG2 images.

JBIG is not currently supported but it is probably not difficult to add
support for JBIG-compressed PDF.  Post a URL that dicusses JBIG support
within PDF so we know how its implemented and we will get a patch into
ImageMagick for the next release.