I'm trying to make a reader app for Windows 10 and stuck with the pagination problem. While searching for some solutions I found projects for WPF and Windows 8 Silverlight, but it seems that in UWP some of needed namespaces, classes etc just missing.
So, I tried to use RichTextBlock with ContentOverflow option and build entire book at once. But this method for a large book is really slow, so it seems I need to find another way.
Another possible solution is to use font metrics to calculate how many words can fit, but FontFamily class doesn't contain any similar fields for that.