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' For complete examples and data files, please go to https://github.com/groupdocs-metadata/GroupDocs.Metadata-for-.NET
' initialize DwgFormat class
Dim dxfFormat As New DxfFormat(Common.MapSourceFilePath(dxfFilePath))

' get metadata
Dim metadata As CadMetadata = dxfFormat.GetDfxMetadata()

' get width
Dim width As Integer = metadata.Width

' get height
Dim height As Integer = metadata.Height

' get header attribute