I have been out of affiliate marketing for about 13 years.
Back in the early 2000's we used to create product catalogs with multiple brands and their products. We'd promote and then we'd follow up with email promoting the products in the catalog and of course we'd add new ones as well.
In 2019 is there some reason why affiliate marketing with PDF catalogs does or does not work?
I ask because I don't want to waste paying someone to build a catalog for about 20 brands and their product's and it being a flop.
Is there any prevailing wisdom why I should or should not move forward?