Urgent Data Scraper for Text and PDFs

I need data scrapper for one website, that is able to extract PDF files, and rename them as per naming convention on the same website.

There is a human check that asks to do simple maths and before accessing the website, one must tick a box to accept terms of use. Other than that, no additional security.

I also need some sort of simple GUI, where I enter folder ID's, and those ID's are then searched in the system, and file + two additional datapoints are extracted