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Thomas Knoll (born April 14, 1960) is an American software engineer who created Adobe Photoshop. He initiated the development of image processing routines in 1988.[1] After Knoll created the first core routines, he showed them to his brother, John Knoll, who worked at Industrial Light and Magic.[1] John liked what he saw, suggested new features, and encouraged Tom to bundle them into a package with a graphical user interface. In 1989, John successfully sold the program to Adobe Systems which brought it out as Photoshop.[1]

Thomas Knoll
Born (1960-04-14) April 14, 1960 (age 58)
Alma materUniversity of Michigan
OccupationSoftware engineer
ChildrenAndrew Knoll, Hannah Knoll

Thomas Knoll was the lead developer until version CS4,[2] and currently contributes to work on the Camera Raw plug-in to process raw images from cameras.[2]

Knoll was born and raised in Ann Arbor, Michigan, and graduated from the University of Michigan.[3] He currently[when?] lives in Ann Arbor.[citation needed]

The Adobe Photoshop version CC 2015, which was released on June 15, 2015, was dedicated to Thomas Knoll and his brother.


  1. ^ a b c "From Darkroom to Desktop—How Photoshop Came to Light". 2000-02-18. Archived from the original on 2007-06-26. Retrieved 2010-02-19.
  2. ^ a b "20 Years of Adobe Photoshop". 2010-02-01. Retrieved 2010-02-19.
  3. ^ "THOMAS KNOLL, 1982, MSE'84". Retrieved 2017-01-17.