Purchased Stonehenge Oil paper pad...9x12. I proceeded to complete a study/painting on every page. Now comes framing. Finding out that the paper needs to be secured to a rigid backing... glued? taped? under glass? or varnished. I have researched this endlessly but I have found nothing on mounting the paper sheets before framing. I really need a good process if one out there. A couple of the paintings turned out very nice. Thanks!