In this tutorial we will be installing the PDF viewer Okular on Ubuntu 20.04 Focal Fossa.

In this tutorial you will learn:
Okular PDF viewer installation on Ubuntu 20.04 Focal Fossa
Okular PDF viewer installation on Ubuntu 20.04 Focal Fossa

Software Requirements and Conventions Used

Software Requirements and Linux Command Line Conventions
Category Requirements, Conventions or Software Version Used
System Installed Ubuntu 20.04 or upgraded Ubuntu 20.04 Focal Fossa
Software Okular
Other Privileged access to your Linux system as root or via the sudo command.
Conventions # - requires given linux commands to be executed with root privileges either directly as a root user or by use of sudo command
$ - requires given linux commands to be executed as a regular non-privileged user

Okular PDF viewer installation on Ubuntu 20.04 step by step instructions

Install Okular from command line

  1. Start by opening a terminal window and execution of the bellow apt command:
    $ sudo apt install okular
    
    All done.
  2. You can start the Okular PDF viewer using the below command:
    $ okular
    
    Alternatively, you can start and point the Okular PDF viewer to an existing PDF document at the same time. Example:
    $ okular /path/to/pdf/document.pdf
    

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Install Okular using graphical user interface



  1. Open software application
    Use top left Activities menu to open the Software application.
  2. search for okular
    Search for okular application.


  3. PDF viewer installation - okular
    To begin the installation press the Install button


  4. Enter your username and password
    Enter your username and password. Your user needs to belong to sudo administrative group.


  5. Start the Okular PDF viewer application
    Start the Okular PDF viewer application
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