I was able to open and read documents just fine yesterday, but today, I am getting an error that says:
For the best experience, open this PDF portfolio in Acrobat X or Adobe Reader X, or later.
I have an Acrobat Pro DC license, and am working on a MacBook Pro with High Sierra.
Thanks for the help.
This may be your answer:
"Why an alert about Flash Player?
"You need Flash Player to view Flash content in PDFs, PDF Portfolios, and other features. Adobe Reader and Acrobat no longer include Flash Player, and features that require Flash now leverage the machine’s local copy of Flash. This new strategy allows users and administrators to manage Flash Player updates independently of Acrobat product updates."
I think you're trying to view it in a browser. Don't!