WMF is a Windows MetaFile that can contain both vector and bitmap image information. We added support of WMF file format along-with few others in GroupDocs.Conversion for .NET 19.5. You can now convert any supported file format to WMF. Along-with WMF, convert supported documents to EMF.
Convert to EMF
Convert to WMF
Moreover, you can now pay royalties for the use of the API. Yes, metered licensing is now enabled....WMF is a Windows MetaFile that can contain both vector and bitmap...