ExifTool is a Perl module with an included command-line application for
reading and writing meta information in image, audio, and video files.
It reads EXIF, GPS, IPTC, XMP, JFIF, MakerNotes, GeoTIFF, ICC Profile,
Photoshop IRB, FlashPix, AFCP, and ID3 meta information from JPG, JP2,
TIFF, GIF, PNG, MNG, JNG, MIFF, EPS, PS, AI, PDF, PSD, BMP, THM, CRW,
CR2, MRW, NEF, PEF, ORF, DNG, and many other types of images. ExifTool
also extracts information from the maker notes of many digital cameras
by various manufacturers including Canon, Casio, FujiFilm, HP,
JVC/Victor, Kodak, Leaf, Minolta/Konica-Minolta, Nikon, Olympus/Epson,
Panasonic/Leica, Pentax/Asahi, Ricoh, Sanyo, Sigma/Foveon, and Sony.