PDF Reader Pro.exe means you download the package directly from our website without a need of an account. You can upgrade and unlock the advanced features by purchasing a license code in the Website Store; PDF Reader Pro (Microsoft Store) means you download the app from Microsoft Store. Please make sure you have a Microsoft account before you download it. And you can purchase Permanent License or 3-Month Access Pack to unlock the advanced features within the app; Now, you are welcome to experience all features with a 7-day free trial of PDF Reader Pro.exe before you purchase it. Here are some differences between the free version and paid version of PDF Reader Pro.
PDF Reader Pro. exe
PDF Reader Pro (Microsoft Store)