Heidelberger Druckmaschinen AG is a German precision mechanical engineering company with registered offices in Heidelberg and headquarters in Wiesloch/Walldorf. The company offers product and services along the entire process and value chain for printing products and is the largest global manufacturer of offset printing presses. Sheet-fed offset printing is used predominantly for high-quality, multi-colour products, such as catalogues, calendars, posters, and labels. Heidelberg produces equipment for prepress, press and postpress. Heidelberg is particularly well known in letterpress circles for the Original Heidelberg Platen Press, commonly known as the "Windmill" after the rotating arms of the paper feed mechanism. It was both power-driven and power-fed. They were manufactured in enormous quantities from 1927 through 1985, and many are still in service well into the 21st century. By cooperating with Ricoh in 2011 Heidelberg entered a global distribution agreement contract to sell and support the Japanese company's latest production digital colour press, alongside their extensive offset press portfolio. Wikipedia