Best AI method to analyze and query 1000's of local .pdfs?

I have a very large collection of pdfs which are impossible to really catalog. I would like to be able to just set an AI loose on the entire collection and then be able to query the AI about specific key words, topics, numbers, and ideas and have it find all the relevant documents for me to read myself.

Wouldn't mind training an AI specifically on that narrow dataset too, if that's possible.

They generally range from 1 page to …

analyze artificial collection ideas key numbers pdfs query set topics words