ideax032/pdfgpt_app ? reverse-engineered prompt

Build me a simple app that lets me upload a PDF and then chat with it.

I want to be able to drop in one or more documents, wait for them to load, and then ask questions in plain English about what is inside. The app should answer based on the PDF contents, show where it found the answer if possible, and let me ask follow up questions without starting over every time. It should also handle basic things like displaying the uploaded files, showing loading progress, and giving a clear message if a document cannot be read.

Make the interface clean and easy to use, with a chat area and a file upload area. If it needs a backend or any AI setup, wire that up in a simple way and use sensible defaults. If you need current setup details or best practices, look up the latest docs online before finishing.