The extra tags provide extra features or extra information extracted or generated by ExifTool that is not directly associated with another tag group. The Group column lists the family 1 group name when reading. Tags with a "-" in this column are write-only.

A command-line interface to Image::ExifTool, used for reading and writing meta information in a variety of file types. FILE is one or more source file names, directory names, or - for the standard input. Metadata is read from source files and printed in readable form to the console (or written to output text files with -w).

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