Founder of Adobe and developer of PDFs, Charles ‘Chuck’ Geschke, dies at age 81

Charles ‘Chuck’ Geschke — the co-founder of the major software company Adobe Inc. who helped develop Portable Document Format technology, or PDFs — died at age 81.

Geschke, who lived in the San Francisco Bay Area suburb of Los Altos, died Friday, the company said.

“This is a huge loss for the entire Adobe community and the technology industry, for whom he has been a guide and hero for decades,” Adobe CEO Shantanu Narayen wrote in an email to the company’s employees.

“As co-founders of Adobe, Chuck and John Warnock developed groundbreaking software that has revolutionised how people create and communicate,” Narayen said.