There's nothing small, much less subatomic, about Quark's presence in the publishing market. The Platinum Equity company is best known for its QuarkXPress desktop application long before almost anyone had heard the term desktop publishing. The page layout application is used worldwide by graphic designers to arrange text and images for books, newspapers, magazines, and other publications. Quark also offers content management software for managing text, images, and other files over networks and the Internet. It serves 3 million users in the commercial publishing, graphic arts, and multimedia markets in more than 160 countries.