The Portable Document Format, or PDF for short, was invented by Adobe as an early attempt to move toward the paperless office - a phenomenon that has still yet to be realised. As a pet project of John Warnock, one of the Adobe founders, PDF received a great deal of backing as a tool that Adobe could use to internally pass documents around. It was not until 1991 that "Interchange Postscript", the first public mention of PDF, was shown to the world, then finally released as PDF 1.0 at Comdex Fall in 1992.
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