Your Drawboard PDF license is linked with your Microsoft Account, you cannot download Drawboard without a Microsoft account since we only allow downloads from the 'public' Microsoft Store.
There is no password/login feature for Drawboard PDF.
If you are seeing a message asking you to login, here are some scenarios why it's appearing:
1. You are only logged into your business/company account
In many cases, business/company email users would be prompted this.
Solution using a 'public' Microsoft account:
1a. Log into your windows device via Email & Accounts (Win Key + "Email & Accounts")
1b. Choose "Add a Microsoft Account"
1c. Restart and download Drawboard
Solution using a 'business' Microsoft account:
1d. Contact your IT department, they have to have a Microsoft Store for Business for the company first, then be able to purchase and allocate a Drawboard PDF license to your email address. Afterwhich you'd be able to download Drawboard PDF properly.
2. You are not logged in at all on your device
If you've put off logging into an account on your device, you'll have to. Drawboard is only available through the Microsoft Store/Store for Business unless you have an enterprise account.
For official steps from Microsoft, check out: How to sign in to your Microsoft account
If you'd like to find out more, check out: Drawboard PDF: What's the difference between a 'public' Microsoft Store account and a 'company' Microsoft Store account?