exiv2  0.27.0-Source
About: Exiv2 is a C++ library and a command line utility to read and write Exif, IPTC and XMP image metadata of images in various formats.
  Fossies Dox: exiv2-0.27.0-Source.tar.gz  ("inofficial" and yet experimental doxygen-generated source code documentation)  

exiv2 Documentation