Before the Postal Storm Hits...What to Do Now

2. Don’t get hung up on the measured numbers of each sheet when comparing to others for brightness, opacity, and gloss. “The true comparison should always be with recently printed samples of each product,” Norman says. “Brightness numbers are often confused with shade. Gloss numbers will change after the ink and water hit the paper, and it takes an opacity difference of two points to be visible to the human eye.”