This study was undertaken to quantify the tendency of modern, digitally printed photographs and documents to adhere to each other or adjacent surfaces in storage. It has long been known that the gelatin binder used in traditional photographic prints can stick to glass in framing packages as well as to many types of plastic sheeting used in storage enclosures. This has typically been attributed to exposure of the materials to high humidity such as found in tropical climates. In this test, a variety of digital print types were incubated at 30°C and 90% RH for seven days and then visually assessed for adherence to polyester, polypropylene, and polyvinyl chloride films; envelope paper; typical framing glass; and both the face and reverse sides of prints of the same type. All digital prints tested were less likely to block or ferrotype than traditional color photographic prints.