Many people use “proofreading” and “editing” interchangeably, but they are different services.
Proofreading
Fixing surface-level errors: spelling, grammar, punctuation, typos. Your content structure stays the same.
Copy Editing
Improving sentence flow, word choice, clarity, and consistency. The editor may rephrase sentences.
Substantive Editing
Major changes to structure, organization, and content. The editor may suggest rewriting sections.
What Most Documents Need
For emails, blog posts, and resumes: Proofreading is usually enough. For academic papers and reports: Copy editing is better.
My $10 proofreading service covers grammar, spelling, punctuation, and basic flow improvements.