Build Streamlit RAG PDF Chatbot

I am putting together an AI document assistant in Python that runs in a Streamlit app. The top-priority feature is reliable uploading and processing of PDFs, so I want the text extraction pipeline built around PyPDF2... (Budget: ₹12500 - ₹37500 INR, Jobs: API Integration, Git, LangChain, Machine Learning (ML), OpenAI, Python, Software Architecture, Software Development, Streamlit, Vector Databases)