edit, redact - prepare for publication or presentation by correcting, revising, or adapting; "Edit a book on lexical semantics"; "she edited the letters of the politician so as to omit the most personal passages"
To copyread is "to edit (as manuscript or copy) for printing." The definition of "copyread" necessarily incorporates the definition of "edit," "to alter, adapt, or refine especially] to bring about conformity to a standard or to suit a particular purpose." A copyreader is "a publishing house editor who reads and corrects manuscript copy" or "one who reads and evaluates usu[ally] unsolicited manuscripts for publication" (Webster's).
When Lewis "copyread," she resembled another famous early twentieth-century trade editor, Saxe Commins, who had, as John O'Hara protested, a "surgical glint" in his eye when he took up his pen to edit authors' manuscripts (qtd.