The current description is a bit misleading, as it indicates the tool can only handle files with EXIF information embedded. This is not true, according to http://www.sno.phy.queensu.ca/~phil/exiftool/ the tool is capable of displaying much more. I would propose the following description: "Read and write meta information in image, audio and video files"
"ExifTool is a platform-independent Perl library plus a command-line application for reading, writing and editing meta information in image, audio and video files. ExifTool supports many different types of metadata including EXIF, GPS, IPTC, XMP, JFIF, GeoTIFF, ICC Profile, Photoshop IRB, FlashPix, AFCP and ID3, as well as the maker notes of many digital cameras by Canon, Casio, FujiFilm, HP, JVC/Victor, Kodak, Leaf, Minolta/Konica- Minolta, Nikon, Olympus/Epson, Panasonic/Leica, Pentax/Asahi, Ricoh, Sanyo, Sigma/Foveon and Sony.
I've updated both the description and the long description. Thanks!