HP Papers is a premium line of uncoated printing paper optimized to provide superior print paper performance when used with HP hardware and supplies and in all other makes and models of printing and copying equipment. Launched in 1996, HP Papers are manufactured and marketed exclusively worldwide in over 75 countries by International Paper, a globally recognized leader in paper products, under license from the Hewlett-Packard Company. With a diverse range of products designed to support a wide range of print applications, from everyday copies to full color presentations, you can be assured of consistent, high quality print performance every time. HP Premium28 Paper is a 28 lb, heavy-weight, super-smooth paper that is extra bright (100 bright) and whiter (163 whiteness) than ordinary paper. HP Premium28 empowers printers to produce their boldest, richest colors when printing full-color documents to impress. Engineered with ColorLok Technology HP Premium28 paper provides brighter colors and bolder blacks for great-looking reports and professional business documents. HP Premium28 is available in 8.5 x 11 letter size paper optimized for full-color printing in all inkjet and laser printers and copiers.