Are there any plans to allow DocIO in UWP to for example render as image or export to PDF?
I know that UWP library was derived from WinRT library, but Universal apps are more powerfull and could be developed for Desktop only.
There are no reasons to not to put such features in UWP package. Developers would be able to create great WindowsStore apps with full DocX/PDF export etc. which would bring more people to Windows Store.