Please add pinch to zoom in the integrated PDF Viewer. Having to use the controls is not a good user experience on a mobile device, plus it typically crashes the app if you hit the + symbol too many times quickly.
Even when using the controls to zoom in, is anyone else having resolution issues? If i view the pdf and zoom in in the bluebeam app, it is crystal clear, but the resolution when you zoom in the powerapp is really poor to the point that the text is illegible. (specific application - 36x48 construction documents).
Updating status and adding @FilipK