Convert tga to ithmb Online: tga2ithmb
You can use Tom's Editor to easily convert images from
Targa .TGA to iPod Thumbnail
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Targa is an image format with extension TGA.
ITHMB are thumbnails used by various Apple devices. At first these images were used by iPhods but now can be found on iPhones and iPads.