By default the standard PDF icon will be used for the files. To personalize this icon go to Catalog settings > PDF and upload a new icon:
impleCode Documentation
Documentation and tutorials for your impleCode Products
Compatible with various WordPress plugins:
WooCommerce
All our solutions are compatible with or without the WooCommerce Catalog Booster plugin.
eCommerce Product Catalog
The best if you are starting with your catalog development.
Product Catalog Simple
This is a simple solution for an extendable custom post type to create your catalog.