Accurate PDF Text Extraction

I have three large, text-heavy PDFs whose existing OCR is unreliable. In total there are about 1900 pages in English . I need each file converted into clean, searchable text I can drop straight into AI workflows, so absolute accuracy is more important than preserving fancy layouts... (Budget: $30 - $250 USD, Jobs: ABBYY FineReader, Adobe Acrobat, Adobe InDesign, Data Entry, Data Processing, LaTeX, OCR, PDF, Proofreading, Text Recognition)