# Why Your RAG System Doesn’t Know What’s in Your PDFs (And How to Fix It)

> Source: <https://pub.towardsai.net/why-your-rag-system-doesnt-know-what-s-in-your-pdfs-and-how-to-fix-it-d5df7a91ae4e?source=rss----98111c9905da---4>
> Published: 2026-06-15 20:31:00+00:00

A three-step pipeline — pdfplumber, regex, and fuzzy matching — that turns unstructured invoices into data your model can actually use.
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