The problem is, the portfolios I want to access are off-line, but I do a lot on the Internet and I can't control what some sites might want to do through Flash. I understand why Adobe killed Flash -- they created a monster and lost control of its security -- but I wish they had provided us users with a solution for accessing our old portfolios. After all, I created the things using Acrobat -- it's their bleepin' program!
K Frame: I need to study that link you provided a bit more. The idea of creating my own portfolio-like page didn't work. I was able to create a page, import cover images of three code books that belong in one group, and add three hotlinks to the PDFs on my network storage device (W-D MyCloud). When I exported the document to PDF, the links appear to be active links, but when I click on them all I get is a pop-up asking if I trust the destination location. I tell it to go ahead, and nothing happens. When I click the same link again, I get the same pop-up. It's not remembering that I just told it to go ahead.
For now, I've adopted the rather inelegant but workable expedient of editing the desktop shortcut to just take me to the directory that the code PDFs are located in. Clicking the icon opens Windows File Explorer to that directory, and I can open the files from there.
It works, and that's what I may end up with. I was hoping to do something a bit nicer looking.