download PDF from react-pdf using pupeeter

I have a pdf viewer using sample from react-pdf 

using your example and also with your test url and I did not found any file that has been downloading to my comp 

so my goal is to go to this page for example :
https://pdf-xml-download-test.vercel.app/api/file/pdf

and download a file to my  target folder 
how can I do that ? 