A couple weeks ago we announced a Java tool for embedding XMP metadata in PDFs. Now Jon Phillips has taken the pjmt PHP library and wrapped it with simple command line an library methods for embedding XMP metadata in JPEG image files. Obviously this would be useful for integration with web-based photo sites. Get the code from the xmp/jpeg-php module of the cctools subversion repository on sourceforge.

Also see our XMP overview page. As Nathan Yergler wrote a few days ago, this code is partially inspired by our Google Summer of Code experience.