From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rasmus <rasmus@gmx.us>
Subject: Re: Embedding and extracting license/author information in an image
 file
Date: Mon, 07 Dec 2015 22:30:43 +0100
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Julien Cubizolles <j.cubizolles@free.fr> writes:

> I often include images in my org documents and would like to properly
> cite the license, and/or author. I was thinking that this could be
> simplified by:
>
> * embedding the license/author information in some metadata of the jpg
>   or png file (it seems that some standard called xmp can be used to
>   embed data in png/jpg [fn:1]) preferably using some emacs tool
>
> * getting org to add a footnote with this information when linking to a
>   file with this kind of information.
>
> Could it be done ? Do you know of an emacs package providing read/write
> access to this metadata ?

You could probably use exiftool with org-babel or dynamic blocks to
extract the required data and generated the syntax you want.

Hope it helps,
Rasmus

-- 
ツ