PermaJet Digital Photo Paper Matt Proofing is a midweight white, matt paper that's specifically designed for contact proofing. Don't take that to mean that this a low-quality product, though, as it still gives you the excellent image quality you'd expect from PermaJet. PermaJet Digital Photo Paper Matt Proofing is a good, all-round paper for everyday image printing at an economical price. We sell two sizes of PermaJet Digital Photo Paper Matt Proofing: A4 (150 sheets) and A3 (75 sheets)