Ubuntu is the most popular distribution of Linux. GIMP is a free photo editing software available for Ubuntu.
Open the terminal by pressing Alt+Ctrl+T and add this repository by entering the commands below
sudo add-apt-repository ppa:otto-kesselgulasch/gimp
sudo apt-get update
After adding the repository, Install GIMP by using the following command
sudo apt-get install gimp
If you are already on a older version of GIMP then first use the following command to uninstall the existing version and follow the instructions above to install the latest version.
sudo apt-get autoremove gimp gimp-plugin-registry
If you have any questions or suggestions then let us know in the comments below.