Completely inaccurate results from file read

Hello, I am new to all this. I have LM Studio set up and downloaded several models. I also set up RAG (I think). I am trying to use it to read a pdf of one of my novels and create a discussion worksheet, a new blurb, etc.

I have tried a few different models to do this, including DeepSeek, Qwen3-14b and Llama 3 8b. None of them seem to actually read the pdf file I provide. At best, it seems to search the internet for details and create something from that. The results have been poor to absolute rubbish based on whatever it seems to be getting the information from.

I have very little idea of what I am doing here, so if there is a better approach, any help is greatly appreciated.