PDF Snake is an outstanding tool for preparing manuals, booklets and fold-ups for press. When we changed from using a photocopier for preparing our production documentation, massaging our PDF files into a print ready form was an absolute nightmare. Now I have all my standard formats defined I can produce print ready PDFs in seconds with only 3 or 4 mouse clicks. Best of all, because Snake is a plug-in this is all done within Acrobat, so there are no messy file transfers or other applications to run.
This is an excellent product with very good product support.