John Warnock was a self-described “mediocre” student but solved an abstract algebra problem that had been a mystery since it was posed eight years before. And that wasn’t his greatest achievement.
John Warnock, who helped invent the PDF and co-founded Adobe Systems, has died. He was 82.
Warnock worked for Xerox before he and colleague Charles Geschke created a company around a rejected idea in 1982. Nearly a decade later, Warnock outlined an early version of the Portable Document Format, or PDF, transforming the way documents are exchanged. “I had an amazing teacher in high school who, essentially, completely turned me around,” Warnock said. “He was really good at getting you to love mathematics, and that’s when I got into it.”He continued to be a self-described “mediocre” student as he earned his bachelor’s degree in mathematics and philosophy, but he made a mark while working on his master’s degree.
They founded Adobe in 1982 and created PostScript, a program that helped make small-scale printing feasible for the first time. The company later created the PDF, which let people create electronic versions of documents that could be preserved and sent it to other users, who could search and review them.With that, Adobe took off, and PDF eventually replaced many paper copies in legal, business and personal communication.
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