In the IT industry there is a proverb going around, which says everything about fonts: "Font" is just another four-letter word starting with an "F" – and there is nothing we have to comment!
Still, we will have to live with fonts and with the problems they cause, which were incorporated in the usage of fonts by the "gods of IT"!
Fonts are decisive for the look and feel of every document. If this and the font style should be identical to the original document, the selected font is decisive. In product catalogs exotic fonts are relatively rare but sometimes they are used.
If you want to import the contents of your PDF files into the CDF format with this software the used fonts must be installed on your PC, just in the same way as is required by the DTP software, which you have used to originally create these pages. Alternatively you will have to replace the used fonts with system fonts but this can change the layout and the appearance of your pages.
More severe is the problem when it comes to the PC of a catalog user, i.e. the reader of your catalogs. You will have to assume that many of the fonts used in your catalogs will not be on your user's PC.
There are two possibilities how you can solve this problem:
Replace such fonts and use system fonts or
Embed such fonts in the CDF files