You could also open the menu behind the little Options icon
via UI AppleScript.
At least with Acrobat Reader DC this works; I cannot test it with Acrobat Pro DC:
tell application "System Events"
tell application process "Acrobat Reader"
tell window 1
tell group 1
tell group 1
tell group 2
tell group 2
tell group 1
tell group 1
tell group 2
tell menu button 2
perform action "Press"
end tell
end tell
end tell
end tell
end tell
end tell
end tell
end tell
end tell
end tell
end tell