Save PDF file from within in-app browser

I have some web archive files that contains links to PDFs. The correctly formatted PDFs open in the in-app browser, but there does not appear to be a way to save them in DTTG without a series of external steps (like opening the archived page and the PDF link in Safari, then saving back to DTTG). Surely there must be a way to add this functionality?

How about a URL ? thanks

Perhaps my brain isn’t functioning today, but I don’t understand what you are asking. In a nutshell, I can open a URL link for a PDF file in the in-app browser (in this case, journal.frontiersin.org/article/ … .01540/pdf) and view it, but there is no direct way I can see that allows me to save it or convert it to an editable form in DTTG. It’s relatively simple to open it in Safari, then save an editable PDF to the global inbox. Isn’t there a way to this within DTTG?