Metafile emfMetaFile = new Metafile(filePath);

Bitmap transferBmp = new Bitmap(500, 500);

//some calculation, so the emf File keeps it proportions when it gets drawn into the PictureBox

using (var g = Graphics.FromImage(transferBmp))
{
    g.DrawImage(emfMetaFile, 30, 30, calculatedWidth, calculatedHeight);
}

pbDrawing.Image = transferBmp;