The default package repository contains an older version of Gimp packages. You have multiple ways for the installation of Gimp on your Debian systems.
This article will help you to install Gimp on Debian 10 (Buster) Linux system. GIMP is a cross platform application, available for the Linux, Windows, MAC OS, and FreeBSD etc. This provides a power and flexibility to the web designers to transform images into truly unique creations. Using this application, you can easily optimize the image, convert the type of image etc. GIMP is GNU Image Manipulation Program is an open source application for the image manipulation or images editor.