Is linking necessary to download files?

Thank you so much! I looked through your previous answers and I think I got it. I'll try implementing it when I get home. I saw that you cited security concerns. I would of course only be downloading non-personal PDFs and Word documents. (Informational packets and forms)

There wouldn't be any problem getting my app approved to the App Store would there? Also, are there any alternate solutions that would allow me to check each file individually in a folder and only download it if it has been updated?

My goal is to check every file in the folder and decide whether or not download it without explicitly knowing what the file is. (So I can add and remove files from the folder if needed) That's why I was straying away from explicit share links.