A person who edits or makes changes to documents.
A copy editor.
A person who edited a specific document.
A person at a newspaper, publisher or similar institution who edits stories and/or decides which ones to publish.
A machine used for editing (cutting and splicing) movie film
(computer software) A program for creating and making changes to files, especially text files.
Someone who manipulates video footage and assembles it into the correct order etc for broadcast; a picture editor.