What does a proofreader do in editing?

A proofreader in editing is responsible for reviewing written content to identify and correct errors in grammar, spelling, punctuation, and formatting. They ensure that the final version of a document is accurate, consistent, and free of mistakes before it is published or distributed. Proofreaders may also check for consistency in style and layout, and sometimes contribute suggestions for improving clarity and flow. Their work is crucial in maintaining the professionalism and credibility of published material.