// For complete examples and data files, please go to https://github.com/groupdocsmetadata/GroupDocs_Metadata_NET
firstDocument = Common.MapSourceFilePath(firstDocument);
secondDocument = Common.MapSourceFilePath(secondDocument);
MetadataPropertyCollection differnces = ComparisonFacade.CompareDocuments(firstDocument, secondDocument, type);
foreach(MetadataProperty property in differnces)
{
Console.WriteLine("{0} : {1}", property.Name, property.Value);
}