Understanding RAG by Building a ChatPDF App with NumPy (Part 1)

🧠 Building a Chat with PDF App (From Scratch using NumPy) – Part 1 Turning a simple PDF into a conversational AI system using local LLMs 🚀 📌 Introduction Have you ever wanted to chat with your PDF documents like you chat with ChatGPT? In this series, I’ll walk you through building a ChatPDF application from scratch, starting from the absolute basics and gradually improving it into a production-ready system. 👉 In this first part, we’ll build a naive RAG (Retrieval-Au