Precise PDF Text Updates

I have a small batch of PDFs that need fresh text and numeric entries added or existing ones corrected. The task is strictly content-level: no layout redesign, images, or logo work. I want the revised files to look almost identical to the originals—just a touch cleaner and fully professional... (Budget: $15 - $25 USD, Jobs: Content Writing, Copy Typing, Data Entry, Data Processing, PDF, Technical Writing, Word)