Edit and Correction In My Book

I am in need of an experienced professional to edit and correct my book in a PDF format within a month. The change I need is related to punctuation and spelling only. I am open to suggestions made by the freelancer regarding improvements. The end goal is to have a flawless book that can easily be read and understood by the intended audience. The edits should be made with an eye to detail, plus an understanding of the project's content and tone in order to bring out the best in my work. I look forward to working with someone who can provide these changes in a timely manner.