Shantanu Narayen joined Adobe in 1998 and became CEO in 2007. Over the next 18 years, he helped turn its flagship products like Photoshop, Illustrator, Premiere Pro, and InDesign, into the industry standard for creative professionals worldwide. On Thursday, he announced he would be stepping down as CEO once a successor is found.
"This is not a goodbye by any means, but a time for reflection," Narayen wrote in a letter to employees. He will remain involved with the company as chair of the board, working alongside lead independent director Frank Calderoni on the search for his replacement.
The announcement sent Adobe shares tumbling more than 7% in extended trading, a market reaction that said less about Narayen's tenure and more about the uncertainty surrounding one of software's most established franchises.



