That problem motivated two actions: 1) using the program Revo Unistaller Pro, I immediately removed the DC "reader" from my system and 2), surrendering to the deities of Adobe, I went out to Best Buy and purchased Acrobat Pro 2017 that I have yet to install.
ADOBE ACROBAT 9 PRO UPGRADE PDF
The DC program did offer the opportunity to set up the subscription plan that DC drives toward, that I point-blank refuse to accept. I have Adobe Acrobat XI pro, and I get a screen everytime I open a pdf file, asking me to upgrade to DC or this software license. That obliterated my ability to use v9, make edits and comments as I have for many years. Installing the "free reader" of more than 200 Mb overwrote access to my tried and true Acrobat v9 Pro. What happened with the "Free" download after opening the files (and runing my printer for a few pages) increased my continued annoyance about Adobe.
I was able to inspect the security properties and found, just as Test_Screen_Name had offered in the graphic posted above, that the security was set for v10 and higher, so if I had been running v10, all of this would not have been an issue for me. FOR SALE Adobe Acrobat 9 Pro - Vollversion Windows. That effort accomplished my goal that triggered this thread. ADOBE ACROBAT 9 Pro Bundle - Upgrade Version+Acrobat 8 Vollversion Windows DE - 320.87.
I downloaded what was supposed to be the free Acrobat DC reader, and true when installed it was free (meaning no charge) it was more than anticipated. Yesterday I came to the time-demand point where I had to open the files that were prepared in the DC version. Your approach to me is similar to the approach I use with others in my career of many decades. Update! Also recognizing the posts for assistance from the two of you above! Thank you.