PaperOffice automatically activates a regular unrestricted license during the first installation, which is valid for 14 days .
To test PaperOffice over a longer period of time, you can create a new empty database at any time, connect your user account to it and PaperOffice will generate a new 14-day test license.
If you are already working productively and do not want to use an empty database but want to use your existing one and do not want to buy PaperOffice yet, you can simply obtain the required licenses as Subscription. The subscription version can be canceled at any time.
Activation costs will be credited to you when you later purchase the non-discounted purchase version.
Helpful HelpDesk entry: How can I disconnect the database