Introduction

public static void SplitPdfByRangeOfPages()
{
  Console.WriteLine( "=== SPLIT PDF BY RANGE OF PAGES ===" );

  var inputFile = "Animals.pdf";

  var outputFileName = "Animals.pdf";
  var outputPath = SplitPdfSample.SplitByRangeOfPagesOutputDirectory + outputFileName;

  // Load a Pdf Document.
  using( var document = PdfDocument.Load( SplitPdfSample.SplitPdfSampleResourceDirectory + inputFile ) )
  {
    // Split the loaded document in 3 and put the results in output path:
    // 1st part: pages 0 to 2.
    // 2nd part: pages 3 to 5.
    // 3rd part: pages 6 to 9.
    document.Split( SplitByPageOptions.ToPath( 0, 2, outputPath ) );
    document.Split( SplitByPageOptions.ToPath( 3, 5, outputPath ) );
    document.Split( SplitByPageOptions.ToPath( 6, 9, outputPath ) );

    Console.WriteLine( $"Info exported to folder: {SplitPdfSample.SplitByRangeOfPagesOutputDirectory}" );
  }
}