Illustrator 9 and 10 can edit PDFs too, but it's of course a rather stupid thing to do.

Your nice swan logo could very simply be exported from XaraX to Illustrator 7 format, and the Macnoids could then open it - and destroy it!

K
www.xaraxone.com/FeaturedArt/kn/
www.klausnordby.com/xara