Professional PDF Layout Refinement

I have an existing PDF presentation that already contains all the copy and visuals I need, but the overall layout still feels uneven and a little amateur. I want the file polished so it presents as a sharp, professional-grade document suitable for corporate decision makers... (Budget: $10 - $30 AUD, Jobs: Adobe Illustrator, Adobe InDesign, Brochure Design, Corporate Identity, Graphic Design, Illustrator, Typography, Visual Design)