Word / PDF files question

Ok so say you create a catalogue of products in a word document that has 500 products and 200 pages

You then turn it into a PDF creating a index so you can jump to different product catorgories.

My problem is what happens if I make changes to whats in the catalouge every week. As far as I can tell you then have to start the PDF index from scratch everytime you add products or make a change.

If you use Hyperlinks in word to create the index menu it doesn’t carry over to PDF.

So is this a dead end… Only way to do it is a pain in the ***… Or am I missing something ?