Welcome to the Exiv2 forum!
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There is an anonymous user exiv2post/2post2exiv2. It is meant for people who want to post a one-off contribution to the forum. If you use it please leave a name or nickname by which you'd like to be addressed. For anything more than a one-off post, please register. This will allow you to use many more features of this site and to "watch" your thread. (Anonymous posting, i.e., posting without signing-in at all, is disabled, it led to too much spam.)