Create fees and discounts based on any criteria you want! This extension uses an intuitive "rules" system to easily determine when your shipping charges appear. Fees and discounts can be combined into a single line item on the order, or you can show each fee/discount separately as its own line...
Make files downloadable without purchase
Show files that can be purchased and provide easy access to purchased downloads
Associate downloads with product options
Send out limited time/count free download links to commercial...