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' For complete examples and data files, please go to https://github.com/groupdocsmetadata/GroupDocs_Metadata_NET
' initialize DocFormat
Dim docFormat As New DocFormat(Common.MapSourceFilePath(filePath))

' initialize metadata
Dim docMetadata As DocMetadata = docFormat.DocumentProperties

' get properties
Console.WriteLine("Built-in Properties: ")
For Each [property] As KeyValuePair(Of String, PropertyValue) In docMetadata
    ' check if built-in property
    If docMetadata.IsBuiltIn([property].Key) Then
        Console.WriteLine("{0} : {1}", [property].Key, [property].Value)
    End If