PDFScanner ("the app") is offered as a commecial app on the Mac App Store. The app is provided by Felix Rotthowe and is intended for use as is.
Information Collection and Use
PDFScanner does NOT collect any information about the user and does NOT transmit any user data to the internet.
There is NO central server involved in any of the features PDFScanner provides.
The app does NOT use any third party services that may collect information used to identify you.
If you use the sharing button in the user interface, you will be able to share the documents created with PDFScanner with a third party service. The connection to this service is established by the operating system (macOS) and not by the app itself. PDFScanner will never transfer any document to any third party.