library and program to read and write meta information in multimedia files

 Image::ExifTool is a customizable set of Perl modules plus a full-featured
 command-line application called exiftool for reading and writing meta
 information in a wide variety of files, including the maker note information
 of many digital cameras by various manufacturers such as Canon, Casio, DJI,
 FLIR, FujiFilm, GE, GoPro, HP, JVC/Victor, Kodak, Leaf, Minolta/Konica-Minolta,
 Nikon, Nintendo, Olympus/Epson, Panasonic/Leica, Pentax/Asahi, Phase One,
 Reconyx, Ricoh, Samsung, Sanyo, Sigma/Foveon and Sony.
 .
 The following modules/packages are recommended for specific features, e.g.
 decoding compressed and/or encrypted information from the indicated file
 types, calculating digest values for some information types, etc.:
 .
  * Archive::Zip / libarchive-zip-perl: ZIP, DOCX, PPTX, XLSX, ODP, ODS, ODT,
    EIP, iWork
  * Unicode::LineBreak / libunicode-linebreak-perl: for column-alignment of
    alternate language output
  * POSIX::strptime / libposix-strptime-perl: for inverse date/time conversion
  * Time::Piece (in perl core): alternative to POSIX::strptime
  * IO::Compress::RawDeflate + IO::Uncompress::RawInflate (in perl core): for
    reading FLIF images