Cannot open .pdf in Safari with Adobe Reader

[reidm95348312]

My wife has a new iMac running macOS Sierra 10.12.6 (latest update)   She had downloaded the newest version of the Reader from the Adobe site

When she tries to open a .pdf file through Safari, she gets a screen message with Adobe Acrobat Reader (in Bold) and several lines of Asian writing below and file does not open.

I went the Safari plug-in menu and disabled Reader.   Now .pdfs in Safari open in Preview but would rather be using the acrobat reader.

Where do you find the Acrobat Reader files on the HD?  I've searched several times but only found an old installer.   Is there any way to do a universal cleaning of those files?  Any suggestions very much appreciated.

Thanks

[try67 · Accepted solution]

See: Configure browser to use the Adobe PDF plug-in to open online PDF files