Convert ithmb to bmp Online: ithmb2bmp
You can use Tom's Editor to easily convert images from
.ITHMB to Microsoft Windows bitmap .BMP.
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
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.
Format created by Microsoft for their Windows and OS/2 operating systems. Images can be compressed or not.