Pinta image editor for Ubuntu Linux

Microsoft Windows Paint enables the basic image editing functionality. In Ubuntu Linux, there is a Pinta program offers the similar image editing features like Microsoft Paint. It does not equipped with Ubuntu installation and it needs to be installed by Ubuntu Software installation program.

To install Pinta in Ubuntu Linux:

1. Click Ubuntu Software:

2.  In Ubuntu software:

• Click all
• Search "pinta"
• Click install 

3. Pinta is installed on the menu bar on the left hand side. To start Pinta, you may click the Pinta icon or type "pinta" in Linux shell terminal.

Reference:
Is there a program like Microsoft Paint? [duplicate]
https://askubuntu.com/questions/36577/is-there-a-program-like-microsoft-paint