With the following code I am getting a white background.
MagickReadSettings settings = new MagickReadSettings(); settings.Density = new MagickGeometry(300, 300); settings.FrameIndex = 1; using (MagickImage image = new MagickImage()) { image.Read("Touchline_267700.pdf", settings); image.Write("Touchline_267700.FirstPage.jpg"); }