• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Tech

Adobe co-founder and developer of PDFs dies at age 81

By
The Associated Press
The Associated Press
Down Arrow Button Icon
By
The Associated Press
The Associated Press
Down Arrow Button Icon
April 19, 2021, 9:53 AM ET
Adobe CoFounder Charles Geschke
Adobe founder and developer of PDFs Charles Geschke dies at age 81.Roger Ressmeyer—Corbis/VCG/Getty Images

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 revolutionized how people create and communicate,” Narayen said. “Their first product was Adobe PostScript, an innovative technology that provided a radical new way to print text and images on paper and sparked the desktop publishing revolution. Chuck instilled a relentless drive for innovation in the company, resulting in some of the most transformative software inventions, including the ubiquitous PDF, Acrobat, Illustrator, Premiere Pro and Photoshop.”

His wife said Geschke was also proud of his family.

“He was a famous businessman, the founder of a major company in the U.S. and the world, and of course he was very, very proud of that and it was huge achievement in his life, but it wasn’t his focus—really, his family was,” Nancy “Nan” Geschke, 78, told the Mercury News on Saturday. “He always called himself the luckiest man in the world.”

After earning a doctorate from Carnegie Mellon University, Geschke began working at Xerox Palo Alto Research Center, where he met Warnock, the Mercury News reported. The men left the company in 1982 to found Adobe, developing software together.

In 2009, President Barack Obama awarded Geschke and Warnock the National Medal of Technology.

In 1992, Geschke survived a kidnapping, the Mercury News reported.

Arriving to work one morning, two men seized Geschke, then 52, at gunpoint and took him to Hollister, California, where he was held for four days. A suspect caught with $650,000 in ransom money eventually led police to the hideout where he was held captive, The Associated Press reported.

About the Author
By The Associated Press
See full bioRight Arrow Button Icon

Latest in Tech

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Tech

Qualcomm CEO Cristiano Amon says 2026 is the year AI agents go mainstream—and the smartphone’s and the smartphone’s reign as your primary device is ending
AIFortune 500: Titans and Disruptors of Industry
Qualcomm CEO Cristiano Amon says 2026 is the year AI agents go mainstream—and the smartphone’s and the smartphone’s reign as your primary device is ending
By Fortune EditorsMay 10, 2026
1 hour ago
The global economy is experiencing the largest capex cycle ever, with nearly $5 trillion seen by the end of the decade—and it’s not all AI spending
EnergyAlternative energy
The global economy is experiencing the largest capex cycle ever, with nearly $5 trillion seen by the end of the decade—and it’s not all AI spending
By Jason MaMay 10, 2026
2 hours ago
AI wins have Alphabet poised to become world’s biggest company
AIAlphabet
AI wins have Alphabet poised to become world’s biggest company
By Ryan Vlastelica and BloombergMay 10, 2026
4 hours ago
OpenAI CEO Sam Altman says Gen Z and millennials are using ChatGPT like a ‘life advisor’—but college students might be one step ahead
TechOpenAI
OpenAI CEO Sam Altman says Gen Z and millennials are using ChatGPT like a ‘life advisor’—but college students might be one step ahead
By Sydney LakeMay 10, 2026
7 hours ago
Torsten Slok, wearing a suit, speaks on a stage with a gold and black background.
AILabor
‘The gains will be substantial’: The AI shock is looking a lot like the China shock, and a top economist says that’s actually good news
By Sasha RogelbergMay 10, 2026
9 hours ago
Young man working on laptop with headphones in modern coffeeshop
Future of Workskills gap
AI generated identical résumés for a man and a woman: Hers was more likely to be labeled ‘weak,’ while his got a 97% approval rating
By Eleanor PringleMay 10, 2026
11 hours ago

Most Popular

'Employers are increasingly turning to degree and GPA' in hiring: Recruiters retreat from ‘talent is everywhere,’ double down on top colleges
Future of Work
'Employers are increasingly turning to degree and GPA' in hiring: Recruiters retreat from ‘talent is everywhere,’ double down on top colleges
By Jake AngeloMay 9, 2026
1 day ago
Ted Cruz says the quiet part out loud: Trump accounts are Social Security personal accounts as GOP senator reveals 'dirty little secret'
Politics
Ted Cruz says the quiet part out loud: Trump accounts are Social Security personal accounts as GOP senator reveals 'dirty little secret'
By Jason MaMay 9, 2026
1 day ago
‘This is the way’: Elon Musk endorses Warren Buffett’s famed 5-minute plan to fix the national debt
Economy
‘This is the way’: Elon Musk endorses Warren Buffett’s famed 5-minute plan to fix the national debt
By Jacqueline MunisMay 10, 2026
7 hours ago
OpenAI CEO Sam Altman says Gen Z and millennials are using ChatGPT like a 'life advisor'—but college students might be one step ahead
Tech
OpenAI CEO Sam Altman says Gen Z and millennials are using ChatGPT like a 'life advisor'—but college students might be one step ahead
By Sydney LakeMay 10, 2026
7 hours ago
Red flag test: former CEO explains why he rejects job candidates who say they can start right away
Success
Red flag test: former CEO explains why he rejects job candidates who say they can start right away
By Orianna Rosa RoyleMay 9, 2026
1 day ago
Trump thinks he's flying to Beijing with leverage. China spent 6 years making sure he doesn't have any
Commentary
Trump thinks he's flying to Beijing with leverage. China spent 6 years making sure he doesn't have any
By Steve H. HankeMay 10, 2026
9 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.