Automate BOL/CI Data Extraction

I have roughly 5 000 PDFs that are a mix of Bills of Lading and Commercial Invoices. I need a reliable script—Python preferred, but any language is fine—that can open each file, read the key parties on the document, and aggregate everything into a single Excel workbook... (Budget: ₹600 - ₹1500 INR, Jobs: Automation, Data Extraction, Data Management, Data Processing, Excel, OCR, Python, Web Scraping)