PDF To tiff is not working well

Hello,

Please find attached pdf. When i tried to convert this pdf to tiff, it cant convert.

var tiffSettings = new TiffSettings
                                                                          {

                                                                              Compression = CompressionType.CCITT3,

                                                                              Depth = Aspose.Pdf.Devices.ColorDepth.Format1bpp,

                                                                              Shape = ShapeType.None,
                                                                              SkipBlankPages = true

                                                                          };