How can I uninstall adobe acroread?
Or if that still doesn't work and returns Package acroread is not installed, so not removed
you can try sudo apt-get purge adobereader-enu && sudo apt-get autoremove
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(Taken from http://ubuntuforums.org/showthread.php?t=1453166#5)
There is an UNINSTALL script in the same folder where you installed it.
$ locate UNINSTALL
/usr/local/Adobe/Reader9/bin/UNINSTALL
$ cd /usr/local/Adobe/Reader9/bin
$ sudo ./UNINSTALL
Done!
I also tried many ways to uninstall adobe reader 9 and this method worked for me
sudo apt-get purge acroread-bin
sudo apt-get autoremove