tiffset -V (return code: 2)
version: Not a TIFF or MDI file, bad magic number 43690 (0xaaaa).
tiffset (return code: 255)
usage: tiffset [options] filename
where options are:
-s <tagname> [count] <value>... set the tag value
-u <tagname> to unset the tag
-d <dirno> set the directory
-sd <diroff> set the subdirectory
-sf <tagname> <filename> read the tag value from file (for ASCII tags only)