EXIFutils
The EXIFutils are a set of command line utilities that extract, add, remove, copy, and replace EXIF, IPTC, and XMP meta data in JPEG, TIFF, and other image file formats including proprietary Raw formats.
The EXIFutils are available for Windows (all versions from Windows95 to Windows 7), x86 Linux, and MacOS X (Intel). They are released under a Shareware license.
Visit the EXIFutils web site exifutils.hugsan.com.