I haven't assumed anything in particular about your expertise. Similarly, I don't know what you used for the PDF conversion, so I can't offer any advice on that front (even if I did know, that doesn't necessarily mean I'd be any more knowledgeable than you about what it can do).

I'm also not sure what you mean by "Word hyperlinks cannot be made to what Word treats as moving/active objects". In Word, hyperlinks to other content in a document is usually done by bookmarking the range the hyperlink is to point to and referencing that bookmark in the hyperlink. Move the bookmark and the hyperlink destination moves with it. What doesn't change automatically is the hyperlink display text. That's because the display text doesn't have to be the same as what the bookmark contains, though that is the default for a new hyperlink.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]