How To Install okular-extra-backends on Ubuntu 18.04
Introduction
In this tutorial we learn how to install okular-extra-backends on Ubuntu 18.04.
What is okular-extra-backends
okular-extra-backends is:
These plugins allow Okular to view additional document formats:
- Microsoft Compiled HTML Help (CHM)
- Tagged Image File Format (TIFF)
- DjVu scanned page format
- EPub eBooks
This package is part of the KDE graphics module.
There are three methods to install okular-extra-backends on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install okular-extra-backends Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install okular-extra-backends using apt-get by running the following command:
sudo apt-get -y install okular-extra-backends
Install okular-extra-backends Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install okular-extra-backends using apt by running the following command:
sudo apt -y install okular-extra-backends
Install okular-extra-backends Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install okular-extra-backends using aptitude by running the following command:
sudo aptitude -y install okular-extra-backends
How To Uninstall okular-extra-backends on Ubuntu 18.04
To uninstall only the okular-extra-backends package we can use the following command:
sudo apt-get remove okular-extra-backends
Uninstall okular-extra-backends And Its Dependencies
To uninstall okular-extra-backends and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove okular-extra-backends
Remove okular-extra-backends Configurations and Data
To remove okular-extra-backends configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge okular-extra-backends
Remove okular-extra-backends configuration, data, and all of its dependencies
We can use the following command to remove okular-extra-backends configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge okular-extra-backends
References
Summary
In this tutorial we learn how to install okular-extra-backends package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
