Planographic refers to a printing process where the printing surface is flat and level. Synonyms for this word can be lithographic, offset printing, or planography. Lithographic is derived from the Greek words 'lithos' meaning 'stone' and 'graphia' meaning 'writing.' This term is used because one of the earliest forms of planographic printing used limestone to create printing plates.
In offset printing, the ink is transferred from a plate to a rubber blanket and then onto the printing surface. This process allows for the printing of high-quality images and text without compromising the printing surface. Planography is simply another term used to describe the planographic printing process. Overall, the use of synonyms for planographic printing depends on the context in which it is being used and the industry in which it is related to.