An editor is someone who edits and makes changes to written documents. They modify, organize and condense material in order to make it accurate and precise. He/ she can be an editor for either a written format or as an film editor for films and tv shows. They are responsible to make the film or TV show to make sense.
There are different kinds of editing at different levels such as editing a film script or screenplay then editing the film scenes and lastly editing the mistakes and flawed scenes shot during the shooting. Editing helps in rechecking the documents and drafts before it is finalized for the viewers and final copy.