Please understand that this version is the complete software product. There are some small limitations as outlined in the fact sheets in the usage of the product, which are removed after purchase. On request we will send a trial key to your email address. It will lift the limitations for some time. When you decide to purchase the software, you won't have to uninstall and get a new copy. Instead, you will receive an unlock code and are able to continue working with your existing copy of the software.