Enhanced Windows MetaFile format (EMF)
EMF (Enhanced MetaFile) is one of Microsoft Windows' "metafile" formats. Its contents are a representation of the primitive operations that Windows' GDI subsystem should use to draw a given object. Metafiles may contain vector graphics as well as bitmaps, and often contain both. They are supported natively by Windows at the GDI level, and in fact are typically created by GDI itself as an application "draws" in a specially-created device context.
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