Quitting Adobe Acrobat Reader

Adobe Acrobat Reader does not respond to AppleScript terminology as it has no scripting dictionary support. Thus you have to use a do shell script and pass the name of the process (AdobeReader) as an argument to pkill and send a termination signal (SIGTERM -15) to kill the application.

tell application "System Events"
	activate
	set quitapps to name of every application process whose visible is true and name is not "Finder"
	
	repeat with p in quitapps
		if process p's name contains "AdobeReader" then
			(do shell script "pkill -x " & process p's name & " -15")
		end if
	end repeat
end tell

This was only an example of quitting Adobe Acrobat Reader from AppleScript, You would need other code, outside of the current if block for Adobe Reader, in the repeat loop to handle other applications.

For the same reasons as Adobe Acrobat Reader DC, if the application that you tell System Events to quit, does not respond to an AppleScript originated event, you will need to introduce another else if that uses pkill to handle that specific application, or a try/end try block that calls a function to use pkill to quit the process.

tell application "System Events"
	activate
	set quitapps to name of every application process whose visible is true and name is not "Finder"
	
	repeat with closeall in quitapps
		if not (process closeall's name contains "AdobeReader") then
			quit application closeall
		else
			(do shell script "pkill -x " & process closeall's name & " -15")
		end if
	end repeat
end tell
return