PDF Reader Pro from Mac App Store
If you download or purchased PDF Reader Pro from Mac Apple Store, you can install and use it in different Mac devices with the same Apple ID logged in and don't need to pay extra fees.
PDF Reader Pro from our Official Website
If you purchase PDF Reader Pro from our official website, you will receive a license code to activate PDF Reader Pro. One license is for one Mac. If you want use it in other Mac device, you need to unbind the license code. Please drop a line at firstname.lastname@example.org with your license code.