Online proofreading positions vary by job type and title, but they essentially all involve the same thing: reading and reviewing written pieces for grammatical and punctuation errors and content quality. Your goal as a proofreader is to edit the project to ensure that all documents and drafts are completely error-free before publishing. Your duties are to edit, re-writing, and correct the content. Online professionals do all of this work from the comfort of their home. You may see proofreading jobs listed as editor, copywriter, line editor, book editor, proofer, and more. While these titles may have slightly different responsibilities, your core job remains the same.