What is the difference between proofreading and editing jobs?

Proofreading jobs are distinguished from editing jobs by the fact that proofreaders have little or no input on the actual copy, and the work involves no writing. In this career, your primary duty is to be the final set of eyes before publication. You address and mark any typographical errors, grammatical mistakes, or formatting issues that the copy editor has missed or that occurred while the type was being set by the printer. You typically proofread galley proofs, which need to be perfect before publication.