This video tutorial is in the Software category which will show you how to use Portable GIMP. It is an image editor packaged as a portable application, so you can carry your images and edit them on the go. You will need a pen drive for this. Do a Google search for "portable gimp' and download the free software from the first link and save it on the pen drive. Then you open it and install it on the pen drive and call it GIMP portable. You can now open the app, customize and use it. You can watch the video for further tips on customization.
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