Convert svg to ithmb Online: svg2ithmb
You can use Tom's Editor to easily convert images from
Scalable Vector Graphics .SVG to iPod Thumbnail
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Scalable Vector Graphics is an image format with extension SVG.
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.