Quartz is the two dimensional graphics service in Mac OS X. It is the modern heart of the Mac OS X user experience, superseding QuickDraw and related managers. Quartz directly supports the Aqua user experience by displaying crisp two-dimensional graphics to create the user interface, including on-the-fly rendering and anti-aliasing. Quartz is based on the Adobe Portable Document Format (PDF). PDF is the standard for electronic document distribution worldwide. PDF is a universal file format that preserves all of the fonts, formatting, colors and graphics of any source document--regardless of the application and platform used to create it.