Installing Acrobat Reader (9.5.5) on Ubuntu 18.04 (Bionic Beaver Linux)

To install Adobe Reader (9.5.5) follow these instructions, courtesy of LinuxConfig.org. 
https://linuxconfig.org/how-to-install-adobe-acrobat-reader-on-ubuntu-18-04-bionic-beaver-linux

Adding issues I ran into post-install.

Possible issues post-install, when running app in terminal. 

• issues below did not stop 'acroread' from running, nor hinder its performance.
• if you execute 'acroread' in terminal you'll see issues like the below with ease. Otherwise, if using the shortcut, likely created under the 'Office' category, then you may need to refer to system logs to identify any errors.

Murrine (or other theme) missing:

• sudo apt install --reinstall gtk2-engines-murrine:i386 (even on 64-bit systems)

        OR

• sudo apt install gtk2-engines-murrine:i386 (even on 64-bit systems)

For these two errors install the modules listed below:

• Gtk-Message: Failed to load module "gail"
• Gtk-Message: Failed to load module "atk-bridge"

Install (even on 64-bit systems):
sudo apt install libatk-adaptor:i386 libgail-common:i386

Notes: if you are on 18.04 then you should be able to use 'apt' without issue. If you prefer to type more you can still use 'apt-get' for now, anyway.
If you are on an earlier Ubuntu version experiencing the same issues you may need to use 'apt-get', as 'apt' alone may not be recognized.