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Image-ExifTool
Posted on 2010-01-05 02:21:25-08 by exiftool in response to 12101
Re: Prevent overwriting existing tags
Dave: Yes, it only works with individual tags.

Bogdan: Be surprised -- This is one of the subtleties mentioned for -tagsFromFile (by default any copied tag will override all previous assignments for the same tag). So for this to work you must use -addTagsFromFile instead. (Yes, I know it is complicated.)

- Phil
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