PDF Proofreading With Layout Preservation

I have a PDF that needs a careful pass for both spelling and grammar, yet I cannot afford to lose a single element of its current design. Every heading, paragraph break, table, and margin must look exactly as it does now—only the words themselves should be flawless... (Budget: ₹750 - ₹1250 INR, Jobs: Adobe Acrobat, Adobe InDesign, Copy Editing, Copy Typing, Copyright, Data Entry, Editing, PDF, Proofreading, Word)