One of my freelance projects a while back was to make an html version of iCatalog for International Color Services. The web version takes screens from a pdf created in catalog prepress production and linkifies the products in it. For a time this was used on customer websites, and I have archive some examples here:
These are several years old, last built to work with iirc, Internet Explorer 5. Beware, the zoom feature is a bit banged up on one side, and the product links are stale, but for the most part it still works!