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John Edward Warnock (October 6, 1940 – August 19, 2023) was an American computer scientist, inventor, technology businessman, and philanthropist best known for co-founding Adobe Systems Inc., the graphics and publishing software company, with Charles Geschke in 1982.
- John Edward Warnock, October 6, 1940, Salt Lake City, Utah, U.S.
- August 19, 2023 (aged 82), Los Altos, California, U.S.
Aug 24, 2023 · John Warnock, Inventor of the PDF, Dies at 82 As a founder of Adobe Systems, he oversaw the development of software and systems that made modern personal computing possible. Share full article
Aug 21, 2023 · New York CNN — John Warnock, co-founder of Adobe, has died aged 82, the software company announced on Sunday. Warnock helped start the revolutionary company in 1982 with the late...
Aug 21, 2023 · John Warnock, Adobe Co-Founder Who Helped Invent the PDF, Dies at 82. Warnock and Charles Geschke left Xerox to found Adobe in 1982 after Xerox refused to commercialize a protocol that...
Aug 20, 2023 · Business / Tech / Adobe co-founder Dr. John Warnock has died — he was 82. / Dr. Warnock, who retired as CEO of Adobe 2000, co-founded the company in 1982, and his business went on to create...
Aug 22, 2023 · John Warnock, who played a seminal role in the history of computing as co-founder and chief executive of Adobe Inc., helping create the Portable Document Format (PDF) and software that turned...
Aug 23, 2023 · SALT LAKE CITY (AP) — John Warnock, who helped invent the PDF and co-founded Adobe Systems, has died. He was 82. The Silicon Valley entrepreneur and computer scientist died Saturday surrounded by family after a nearly two-year battle with pancreatic cancer, the company said.