how to install adobe reader in ubuntu 20.04 code example
Example 1: adobe reader for ubuntu 20.04
$ sudo apt install libxml2:i386 libcanberra-gtk-module:i386 gtk2-engines-murrine:i386 libatk-adaptor:i386
Example 2: adobe reader for ubuntu 20.04
$ wget -O ~/adobe.deb ftp://ftp.adobe.com/pub/adobe/reader/unix/9.x/9.5.5/enu/AdbeRdr9.5.5-1_i386linux_enu.deb
Example 3: adobe reader for ubuntu 20.04
$ sudo dpkg --add-architecture i386
$ sudo apt update