langchain and llama-index are two big opensource projects which are great for buildign this type of thing. https://github.com/mayooear/gpt4-pdf-chatbot-langcha

langchain and llama-index are two big opensource projects which are great for buildign this type of thing. https://github.com/mayooear/gpt4-pdf-chatbot-langchain https://github.com/mayooear/gpt4-pdf-chatbot-langchain for example