Mass Download course PDFs ?

spayee/graphy course

Webpage has a sidebar with category and sub-category and each opens just a PDF.

PDF files are stored here - https://randomlettersandnumbers.cloudfront.net/w/o/randomLettersAndNumbers/v/randomLettersAndNumbers/u/randomLettersAndNumbers/p/assets/pdfs/2021/01/13/randomLettersAndNumbers/file.pdf