XmpPackage

public XmpPacketWrapper XmpPackage { get; set; }

using (Metadata metadata = new Metadata(Constants.PdfWithXmp))
{
    var root = metadata.GetRootPackage<PdfRootPackage>();
    if (root.XmpPackage != null)
    {
        if (root.XmpPackage.Schemes.XmpBasic != null)
        {
            Console.WriteLine(root.XmpPackage.Schemes.XmpBasic.CreatorTool);
            Console.WriteLine(root.XmpPackage.Schemes.XmpBasic.CreateDate);
            Console.WriteLine(root.XmpPackage.Schemes.XmpBasic.ModifyDate);
            Console.WriteLine(root.XmpPackage.Schemes.XmpBasic.Label);
            Console.WriteLine(root.XmpPackage.Schemes.XmpBasic.Nickname);

            // ...
        }

        if (root.XmpPackage.Schemes.DublinCore != null)
        {
            Console.WriteLine(root.XmpPackage.Schemes.DublinCore.Format);
            Console.WriteLine(root.XmpPackage.Schemes.DublinCore.Coverage);
            Console.WriteLine(root.XmpPackage.Schemes.DublinCore.Identifier);
            Console.WriteLine(root.XmpPackage.Schemes.DublinCore.Source);

            // ...
        }

        if (root.XmpPackage.Schemes.Photoshop != null)
        {
            Console.WriteLine(root.XmpPackage.Schemes.Photoshop.ColorMode);
            Console.WriteLine(root.XmpPackage.Schemes.Photoshop.IccProfile);
            Console.WriteLine(root.XmpPackage.Schemes.Photoshop.Country);
            Console.WriteLine(root.XmpPackage.Schemes.Photoshop.City);
            Console.WriteLine(root.XmpPackage.Schemes.Photoshop.DateCreated);

            // ... 
        }

        // ...
    }
}