XMPMeta is an open source C++ library for parsing and writing XMP and XDM metadata. It contains two libraries as follows.
A library for parsing and writing XMP metadata. A library for parsing and writing XDM metadata.
For questions and comments on how to use XMPMeta, features announcements, or design discussions, check out our public Google Group at https://groups.google.com/forum/#!forum/xmpmeta.
Please note this is not an official Google product.