Ithmb Viewer Online Tutorial


Ithmb Viewer is an image viewer that can open Ithmb files as well as other common image file formats.  It also enables you to convert Ithmb images to other formats.

In this quick-start guide, we cover the following topics: what image formats are supported? how to open Ithmb files? how to quickly browse next/previous frame in an Ithmb file? how to convert Ithmb to JPG? how to zoom in, out and rotate an image?



Supported image formats


  • Apple thumbnails – .ithmb
  • Common image formats – .bmp, .gif, .jpg, .jpeg, .png, .tif, .tiff
  • Raw image formats – .arw, .cr2, .crw, .dng, .mrw, .nef, .orf, .pef, .sr2