From Calvin Hass:
JPEGsnoop is a free, portable detailed image decoder that examines any file type containing JPEG compressed images and reports a wealth of hidden information. Can even be used to determine the source of an image or whether it has been edited. Opens .JPG, .THM, .AVI, .DNG, .PDF and extracts embedded JPEG files. JPEGsnoop reports countless details, including image quality, EXIF / IPTC metadata, huffman table decode, etc.
JPEG marker decoding;
JPEG image display;
Optional command-line interface.
What's new in this version:
- Fixed Win XP launch issue
- Improved error handling with missing User Database
- Fixed command-line filenames with leading '-'