This extension enables a store proprietor to offer complimentary downloads for customers in possession of a license for another item. For instance, those who have already acquired Product A or Product B could be eligible to download Product C and Product D gratis. Customers simply input their license code for Product A or B into a designated form to gain immediate access to Products C and D without charge. A form for license verification is presented using the [edd_lfd] shortcode. Please note that the Software Licensing add-on is necessary for this functionality to operate.