Fix Existing n8n Automation OCR & Data Extraction from Image-Based PDFs

I already have an n8n automation that processes PDF documents received through email. The automation is working, but I am facing an issue with image-based/scanned PDFs. I receive multiple emails containing PDFs from different document categories... (Budget: $15 - $25 USD, Jobs: API, Automation, Data Extraction, Image Processing, MongoDB, n8n, OCR, Text Recognition, Workflow Automation)