The Collaborative International Dictionary of English v.0.48:

Redactor \Re*dac"tor\ (-t?r), n.
   One who redacts; one who prepares matter for publication; an
   editor. --Carlyle.
   [1913 Webster]

WordNet (r) 3.0 (2006):

redactor
    n 1: someone who puts text into appropriate form for publication
         [syn: redact, redactor, reviser, rewriter, rewrite
         man]