How can i use XMP to modify metadata of Sharepoint Document?

I am trying to Modify Meta data of Sharepoint Document. How can use XMP for this task? 开发者_运维百科Using C#.

Can anyone give me some code samples?

---

JPEG Data - Read Exif, XMP, and IPTC Data from a JPEG

BitmapTagger

these can be used for image and xmp