Include page count in XMP
The XMP metadata included in an InDesign file does not include the page count. This makes it difficult for thrid party solutions such as digital asset management systems not running InDesign or InDesign Server to display the page count to their users for InDesign files.
There is a standardized XMP element called xmpTPg:NPages which is supposed to contain the page count for multi-page documetns. https://developer.adobe.com/xmp/docs/XMPNamespaces/xmpTPg/ This should be included in the XMP by InDesign.
Bevi Chagnon | ACP commented
Agree with Harbs.
This will be useful to most InDesign users.