Chat with Multiple PDFs (folder structure)

I want to be able to upload my own PDFs, and organize them into folders. I then want to use AI to search for specific information from the PDFs within the folder I have selected. Ideally, we should be able to select more than one folder at once if we choose. At the bare minimum, we should be able to search information from PDFs within a single folder. Typically, I would create a folder for each class that I’m taking during a semester, and upload all of the readings for that class within the folder (which ends up being dozens of PDF files per folder). After the PDFs have been uploaded and organized, that’s when I’d like to chat with the AI by asking specific questions that I want to know the answers to (preferably multiple questions at once to save time), and the AI should point me to the information from the documents that answer my question (as well as provide page numbers where I can reference the information to check for accuracy). Ideally, the AI would directly link me to specific passages, sentences, or quotes within each PDF that support the information it’s giving me, so I won’t have to waste time opening/closing and scrolling through different documents.