Hi - I am a native English speaker with a background in business consultancy, marketing and IT management. You really do need a native speaker for a job like this.
My speciality is writing high quality copy and also professional copy editing and proofreading. I ensure that your book, article or paper is written to a high standard of English (either US/International or UK/Australian or any other variation).
I do quite a lot of this proofreading and editing for authors and large corporations all over the world to deliver Quality Assurance on their books, proposals and business documents before they are issued to clients. Most of their writers are not native English speakers.
To achieve a top quality finished product, I proofread twice. Once to find the errors and improvements, correct them and highlight them. Normally, I accept all changes into a second, new document and proofread that to ensure I have not added any errors myself and to double check everything. You receive both documents.
In your case (as it’s a PDF), I will simply list all of the edits, showing the page, paragraph number, the original sentence and the edited sentence with the changes highlighted
I will be happy to rewrite your intro paragraph – you may request as many revisions as you want.
I am available to begin immediately and I guarantee to finish the task within 24 hours.
Looking forward to hearing from you.
Thanks and best wishes,
Dan