The Windows Metafile (WMF and EMF) formats are vector formats that may or may not also contain a raster image. 
 
EMF/WMF Vector files can be read and written as raster images. Vector read support for these formats is also provided
 
Blaze ImgConvert can load the following objects: EMR_CREATEPALETTE, EMR_POLYBEZIER, EMR_POLYLINE, EMR_POLYBEZIERTO, EMR_POLYLINETO, EMR_POLYBEZIER16, EMR_POLYLINE16, EMR_POLYBEZIERTO16, EMR_POLYLINETO16, EMR_POLYGON, EMR_POLYGON16, EMR_POLYPOLYLINE, EMR_POLYPOLYLINE16, EMR_POLYPOLYGON, EMR_POLYPOLYGON16, EMR_SETPIXELV, EMR_LINETO, EMR_ANGLEARC, EMR_ELLIPSE, EMR_RECTANGLE, EMR_ROUNDRECT, EMR_ARC, EMR_CHORD, EMR_PIE, EMR_ARCTO, EMR_POLYDRAW, EMR_POLYDRAW16, EMR_EXTTEXTOUTA, EMR_EXTTEXTOUTW, EMR_POLYTEXTOUTA, EMR_POLYTEXTOUTW, EMR_BITBLT, EMR_STRETCHBLT, EMR_SETDIBITSTODEVICE, EMR_STRETCHDIBITS, EMR_MODIFYWORLDTRANSFORM, EMR_SETWORLDTRANSFORM, EMR_BEGINPATH, EMR_ENDPATH, EMR_SELECTCLIPPATH, EMR_FILLPATH, EMR_STROKEANDFILLPATH, EMR_STROKEPATH, and EMR_SELECTCLIPPATH.
 
For WMF and EMF files, you can read and write the following bits per pixel: 8, 24.