Adobe (Nasdaq:ADBE) today announced the availability of the fourth version of Adobe PDF Print Engine (APPE 4), Adobe's high-speed, high-fidelity print platform used by the leading print equipment manufacturers, and running in more than 150,000 print operations around the world. As the fastest and most reliable PDF rendering technology, APPE 4 will deliver new performance efficiencies and breakthrough color features to extend Adobe's market-leading print technology. APPE 4 will enable printers to increase workflow efficiency and capitalize on the profit potential of new innovations.