abbreviator, abridger - one who shortens or abridges or condenses a written work

editor, editor in chief - a person responsible for the editorial aspects of publication; the person who determines the final content of a text (especially of a newspaper or magazine)

give voice, phrase, word, articulate, formulate - put into words or an expression; "He formulated his concerns to the board of trustees"

alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"

interpolate, alter, falsify - insert words into texts, often falsifying it thereby

cut up, hack - significantly cut up a manuscript

black out - suppress by censorship as for political reasons; "parts of the newspaper article were blacked out"

blank out - cut out, as for political reasons; "several line in the report were blanked out"

copyedit, copyread, subedit - edit and correct (written or printed material)

bracket out, bracket - place into brackets; "Please bracket this remark"