Why Your PDF Breaks RAG (And How to Fix It)

Your RAG system is only as good as your document processing. If your PDF parser destroys table structure, retrieval starts from broken text. And if your chunking strategy cuts words or context in half, it gets worse. In this video, we fix bad text extraction. We compare PyMuPDF vs LlamaParse for clean markdown, build a page-level chunking strategy with overlap, and run a proper experiment — testing 128, 256, and 512-token chunks on hard queries using LLM-as-judge evaluation. 📚 This is Module 2 of a 10-part RAG course. ⏳ Chapters: 00:00 The Problem with Real-World PDFs 00:50 Why RAG Pipelin…