- Adobe founder who helped develop Portable Document Format (PDF) document Charles Geschke died at the age of 81.
- Geschke founded Adobe in 1982 with colleague John Warnock from Xerox. He retired in 2000 and remained on the Adobe board until 2020.
- After earning a doctorate from Carnegie Mellon University, Geschke began working at Xerox Palo Alto Research Center. He left the company in 1982 to found Adobe.
