Project dossier

How do you detect images in documents and how do you do OCR?

I am building a Graph RAG for the last 2 months. During ingestion, I found that PDF readers have limitations for solo developers, as they either need heavy GPUs or costly LLM-based solutions. So, I am building my own parser that will help with ingestion. I have a corpus of around 110 documents (12,000 pages), and the progress is good so far. I need help to evaluate it properly with confidence, but I have no idea how to approach it so I can say that the parser is good enough to use for ingestion.