Adobe Co-Founder And Developer Of PDFs Charles Geschke Dies At Age 81

Charles Geschke, the co-founder of Adobe Inc. (NASDAQ: ADBE) who helped develop Portable Document Format technology — the PDF — died at age 81 on Friday in California. Geschke began working at the Xerox Palo Alto Research Center after getting his doctorate from Carnegie Mellon University. At Xerox, he met John Warnock. Both left the company in 1982 to found Adobe and started developing software together.