New Post: How to set ImageCollection (PSD) dpi?

using (MagickImageCollection psd = new MagickImageCollection())
{
  MagickImage logo = new MagickImage("logo:");
  logo.Density = new PointD(300);
  psd.Add(logo);

  byte[] data = psd.ToByteArray(MagickFormat.Psd);

  using (MagickImage result = new MagickImage(data))
  {
    Console.WriteLine(result.ToString());
    Console.WriteLine(result.Density.X + "x" + result.Density.Y);
  }
}