editor

noun

• A person who edits or makes changes to documents.
• A copy editor.
• A person who edited a specific document.

  "John Johnson wrote this term paper and the editor was Joan Johnson."

• A person at a newspaper, publisher or similar institution who edits stories and/or decides which ones to publish.

  "John is the city editor at the Daily Times."

• A machine used for editing (cutting and splicing) movie film
• (computer software) A program for creating and making changes to files, especially text files.

  "The TPU EVE editor is an excellent, extensible, programmable editor."

• Someone who manipulates video footage and assembles it into the correct order etc for broadcast; a picture editor.