And- anything that can be printed can be PDFd. Sometimes it takes
"printing to file" and then distilling that file, rather than using
Acrobat's nifty icon on Word's toolbar...

That's mostly true, but a little bit sweeping. Some document complexities
really are beyond Acrobat's ability to deal with (try nested embedded
objects). And the problem can be worse with the shareware Acrobat clones,
some of which fall over for all sorts of strange reasons, eg using
non-TrueType fonts.