I'm facing this problem, too. Unfortunately it is not possible (at least in version 16.3). You can insert a pivot table only as image. In my case, the quality of objects in pixel perfect reports which are inserted as image is worse than the quality in reports created with QV Report Designer.
Does anybody know if there are any improvements in NPrinting version 17?
Paul - there are no planned changes to the PixelPerfect editor for version 17.
There is a workaround to improve the quality of the image from within the QlikView object itself: Improving Image Quality Export using Clipboard Zoom