WMF (Windows MetaFile) is a universal graphics file format on Microsoft Windows systems. This format was created by Microsoft and is an integral part of Windows because this file stores a list of function calls that have to be issued to the Windows graphics layer GDI to display an image on screen.

 

WMF is a 16-bit format. This format was introduced in Windows 3.0. A 32-bit version is called Enhanced Metafile EMF (Enhanced Metafile). The EMF format supports many new commands, supports work with the GDI+ library, and also is used as a graphic language for drivers of printers.