[TestMethod]
public void IdmlToSvg()
{
    //const string idmlFile = @"D:\SGE\w2p\card\file.idml";
    const string idmlFile = @"D:\SGE\w2p\card\C108-F128-710-finance-insurance-business-cards-2-P.idml";

    using (var reader = new IdmlReader(idmlFile, 300, 300))
    {
        for (int i = 0; i < reader.Spreads.Count; i++)
        {
            var spread = reader.Spreads[i];
            var frame = reader.Frames[i];

            using (var svgWriter = new SvgWriter($"D:\\SGE\\w2p\\card\\output\\{i}.svg", frame.Width, frame.Height, 300, 300))
            {
                var svgGraphics = svgWriter.GetGraphics();

                for (var ix = 0; ix < spread.Items.Count; ix++)
                {
                    SpreadItem item = spread.Items[ix];

                    GraphicsContainer graphicContainer = item.GetItemContent();

                    svgGraphics.DrawContainer(graphicContainer, 0, 0);
                }
            }
        }
    }
}