The way proofs are made in the printing industry has changed in recent years. A number of digital proofing systems have come to the market. More and more people are looking into using digital proofs as contract proofs or for remote color proofing devices. However, it has to be kept in mind that at this point in time a digital proof is not yet the standard contract proof. This topic is still under investigation.The purpose of this study is to provide a better understanding of the fading behavior of new proofing materials used in the printing industry. The proofs produced by these systems are the basis for decisions that usually involve large amounts of money. It is therefore important that the fading behavior of the proofing materials is studied carefully. Test conditions for this research are: framed samples under high-intensity fluorescent light, and ozone and nitrogen dioxide to better predict the influence of possible environmental pollutants.