Drawboard PDF PRO is an in-app subscription that can be purchased from within the base Drawboard PDF app.
To find the PRO page within the app:
App Settings > Drawboard PDF PRO > Upgrade
You can obtain drawboard from the Microsoft Store here https://www.microsoft.com/en-au/p/drawboard-pdf-read-edit-annotate/9wzdncrfhwqt
What if I can only use education/business emails to access my Windows device?
Since Drawboard PDF PRO is a subscription, it can only be purchased with a 'personal' Microsoft account as subscriptions are not supported on the Microsoft Store for Business.
If you require enterprise solutions for your organisation, please reach out to us via https://www.drawboard.com/licensing/ to expedite your request.