> Is there any reason why you don't want to do it yourself, simply loading the
> first KBs of the file ? I haven't been writing JPEG decoders for a lng
> time, but I'm pretty sure the EXIF (APPn) marker must be written before the
> image data (the SOS marker(s)), so it is at the beginning of
There is a perl program called exiftool that can load and set exif tool without
loading the image data (or at least it doesn’t decode the image data). I don’t
know whether it would be faster than loading image data/properties with
ImageIO. You could write a perl script that used your bundled exi
