# How do I incorporate metadata using Export?

I have

Export["file.png",codeThatMakesAGraphicsObject[],"PNG"];


and want to embed some specific metadata information. Is there a simple way to do that?

Note that this code already (automatically, apparently) includes metadata information for "Horizontal resolution", "Vertical resolution", "Software used", and "Date and time of digitizing", and I don't want to disturb that with any fields I add.

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You can't have Exif in PNG. The image has to be JPG or TIF – R. M. Oct 11 '13 at 15:50
and I don't think EXIF works in Export anyway. There was a question about this on Wolfram communities recently... – cormullion Oct 11 '13 at 15:54
@rm-rf: Good point. Editing to change "EXIF" to "metadata". – raxacoricofallapatorius Oct 11 '13 at 15:54
Maybe this approach would be helpful: mathematica.stackexchange.com/questions/25759/… – Michael E2 Oct 12 '13 at 22:56