[Zubersoft]

That's not comparing apples to apples - I'm using Microsoft's UWP framework, and the print dialog built into the UWP framework requires every thumbnail from the PDF to be rendered and provided. I'm not sure why you are seeing those issues with the long rendering time - if you want to share the PDF with mike@zubersoft.com, I can take a look at it. If you are using OneDrive in a browser, that's using the browser's print functionality which is most likely using the standard OS print infrastructure (that I can't access from UWP because Microsoft restricts a huge amount of things with UWP). My goal is to switch away from UWP in the future which would open the possibility to change how this is all handled.

Mike