Adobe Systems Incorporated is an American computer software company headquartered in San Jose, California. The company has historically focused upon the creation of multimedia and creativity software products.
Adobe was founded in December 1982 by John Warnock and Charles Geschke, who established the company after leaving Xerox PARC in order to develop and sell the Postscript page description language. In 1985, Apple Computer licensed PostScript for use in its LaserWriter printers, which helped spark the desktop publishing revolution. The company name Adobe comes from Adobe Creek in Los Altos, California, which ran behind the houses of both of the company's founders.
Also, Adobe made the Portable Document Format - PDF specification. PDF is a file format used to represent documents in a manner independent of application software, hardware, and operating systems.