Honestly I do not know the exact answer, and why such description is provided on an FN page - however if you search for DRM in the SDK Help and start reading some hits, Jukka's suggestion will make more sense than a single strangely worded description.
And in the common sense the concept of DRM is not coupled with modifying some content, but with viewing/listening it. DRM capability is about accessing the content itself - and it may also make possible to remove the protection, that is why it is a highly sensitive one.