Sentence:  [p 60] In fact, the photo is a fake. Jane Fonda was added by a <WSD>photoshopper</WSD> to discredit Kerry during the 2004 presidential campaign. / [p 108] Those photographs comprise a trove of near-at-hand raw materials for the <WSD>photoshopper's</WSD> art. News photos are on the Web for the taking—and faking. 
Meaning of the word marked with <WSD> tags:  One who digitally alters photographs.