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.
I installed Adobe Reader based on video here: https://youtu.be/04-J55bnTLQ
Then, I saw the software only allows me to see pdf files, but not to sign them; for uninstall Adobe Reader,it worked for me this:
Or if that still doesn't work and returns
Package acroread is not installed, so not removed
you can trysudo apt-get purge adobereader-enu && sudo apt-get autoremove
.(Taken from http://ubuntuforums.org/showthread.php?t=1453166#5)
There is an UNINSTALL script in the same folder where you installed it.
Done!
I also tried many ways to uninstall adobe reader 9 and this method worked for me
If you have installed it manually, then you have can run
Then remove it from there and delete the folder.
or if you have Synaptic installed you can use that as well.
It should also show up in Software Center if your search for it, but I'm not well-versed in Software Center.
Ubuntu 18.04
Try this command, it worked for me.
I installed Adobe Reader based on video here: https://youtu.be/04-J55bnTLQ Then, I saw the software only allows me to see pdf files, but not to sign them; for uninstall Adobe Reader,it worked for me this: