Update Three Dates in PDF

I have a single PDF that shows three outdated dates—some in the header and the rest inside the body copy. I already know the exact new dates that must replace them; all I need is a clean, print-ready PDF back with those three instances corrected and no other content altered... (Budget: $10 - $30 USD, Jobs: Adobe Acrobat, Adobe InDesign, Graphic Design, PDF, Print Design, Proofreading, Visual Design, Word)