Jane, thanks for your help. I don't have two Adobe IDs. I went through the previously mentioned steps in hopes of acquiring a link that did not require an "in-app purchase" but with no luck.
It's been my experience that if I download an app with "in-app purchase" message from the Apple Store, I am charged immediately. This morning I decided I'd go ahead and download the app and risk the charge, with the intent to cancel if Apple charged me. To my surprise and great relief, I was not charged.