opy of your image
file.  The "exiftool" script does this for you automatically by renaming the
original file and always working on a copy.</p>

<p>The writing logic for ExifTool is the reverse of the reading logic.  You
provide human-readable values and ExifTool will perform the conversions for you.
For instance, you can set "WhiteBalance" to "Daylight" and ExifTool will change
the value of WhiteBalance in the image wherever the tag is found provided that
"Daylight" is a valid value for that location.  Exif