[Zope] OT Zope book images -> PDF

[Eric Walstad]

In light of all the hubbub about the Zope book, I thought I would try and
make my own copy of it in PDF format (just for me, of course).  I'm finding
that Acrobat doesn't know how to convert the PNG image file type used in the
Zope Book.  (or rather, I don't know how to get it to work !)  Anyone know
how to get png files into Acrobat?  Oh, I'm trying to use their 'Open Web
Page' method of creating the document.  Is there another/better way that
will get the png images?
Thanks,
Eric.