Take the following steps to start a project:

1. Start Visual Studio .NET.
2. Choose File->New->Project… from the menu.
3. In the New Project dialog box, Choose either "Visual C# Projects" or "Visual Basic Projects" in the Projects Type List, and choose "Windows Application " in the Templates List.
4. Type the project name as "Splitting Multi-page TIFF file" in the Project Name field, and then choose OK. If desired, type a new location for your project or select a directory using the Browse button, and then choose OK .
5. In the "Solution Explorer" window, right-click on the "References" folder, and select "Add Reference…" from the context menu. In the "Add Reference" dialog box, select the ".NET" tab and browse to the LEADTOOLS For .NET "\LEADTOOLS 16.5\Bin\DotNet\Win32 " folder and select the following DLLs:
   • Leadtools.dll
   • Leadtools.Codecs.dll
6. Click the Select button and then press the OK button to add the above DLLs to the application.
7. Go to the toolbox (View->Toolbox) and Drag and drop a Button control to the top of the form and set the following properties for it:

   Text	Name
   Split TIFF	buttonSplit

8. Switch to Form1 code view (right-click Form1 in the solution explorer then select View Code ) and add the following lines at the beginning of the file: [Visual Basic]

   
   Imports System.IO
   Imports Leadtools
   Imports Leadtools.Codecs
   Imports Leadtools.ImageProcessing
   

   [C#]

   
   using System.IO;
   using Leadtools;
   using Leadtools.Codecs;
   using Leadtools.ImageProcessing;
   

9. Add an event handler to the buttonSplit Click event and code it as follows:

   [Visual Basic]

   
   Private Sub buttonSplit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles buttonSplit.Click
      RasterCodecs.Startup()
   
      ' Intitialize a new RasterCodecs object.
      Dim codecs As New RasterCodecs()
   
      Dim multiPageFileName As String = CreateMultiPageFile(codecs)
   
      ' Find out how many pages the file has
      Dim info As CodecsImageInfo = codecs.GetInformation(multiPageFileName, True)
   
      ' Loop through the pages of the file; perform specific processing on it, then save each page to a separate file:
      Dim flip As New FlipCommand()
      Dim outputDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 16.5\Images"
   
      For pageNumber As Integer = 1 To info.TotalPages
         ' Load the next image in the loop
         Dim image As RasterImage = codecs.Load(multiPageFileName, 0, CodecsLoadByteOrder.BgrOrGray, pageNumber, pageNumber)
   
         ' Perform specific processing on the page, such as flipping it
         flip.Run(image)
   
         ' Save the page to a separate file
         Dim pageFileName As String = Path.Combine(outputDir, "Page" + pageNumber.ToString() + ".tif")
         codecs.Save(image, pageFileName, RasterImageFormat.Tif, 0)
      Next
   
      RasterCodecs.Shutdown()
   End Sub
   
   Function CreateMultiPageFile(ByVal codecs As RasterCodecs) As String
      ' Create a multi-page TIF file
      Dim pageFileName() As String = _
      { _
         "C:\Users\Public\Documents\LEADTOOLS Images\Ocr1.tif", _
         "C:\Users\Public\Documents\LEADTOOLS Images\Ocr2.tif", _
         "C:\Users\Public\Documents\LEADTOOLS Images\Ocr3.tif", _
         "C:\Users\Public\Documents\LEADTOOLS Images\Ocr4.tif" _
      }
   
      Dim image As RasterImage = Nothing
   
      For i As Integer = 0 To pageFileName.Length - 1
         ' load the page image
         Dim page As RasterImage = codecs.Load(pageFileName(i))
         If (i = 0) Then
            ' first image, just save it into our variable
            image = page
         Else
            ' add this page into our image
            image.AddPage(page)
   
            ' we do not need this page anymore
            page.Dispose()
         End If
      Next
   
      Dim outputFileName As String = "C:\Users\Public\Documents\LEADTOOLS Images\MultiPage.tif"
   
      If (File.Exists(outputFileName)) Then
         File.Delete(outputFileName)
      End If
   
      codecs.Save(image, outputFileName, RasterImageFormat.Tif, 1, 1, 4, 1, CodecsSavePageMode.Overwrite)
      image.Dispose()
   
      Return outputFileName
   End Function
   

   [C#]

   
   private void buttonSplit_Click(object sender, System.EventArgs e)
   {
      RasterCodecs.Startup();
   
      // Intitialize a new RasterCodecs object.
      RasterCodecs codecs = new RasterCodecs();
   
      string multiPageFileName = CreateMultiPageFile(codecs);
   
      // Find out how many pages the file has
      CodecsImageInfo info = codecs.GetInformation(multiPageFileName, true);
      
      // Loop through the pages of the file; perform specific processing on it, then save each page to a separate file:
      FlipCommand flip = new FlipCommand();
      string outputDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 16.5\Images";
   
      for(int pageNumber = 1; pageNumber <= info.TotalPages; pageNumber++)
      {
         // Load the next image in the loop
         RasterImage image = codecs.Load(multiPageFileName, 0, CodecsLoadByteOrder.BgrOrGray, pageNumber, pageNumber);
   
         // Perform specific processing on the page, such as flipping it
         flip.Run(image);
   
         // Save the page to a separate file
         string pageFileName = Path.Combine(outputDir, "Page" + pageNumber + ".tif");
         codecs.Save(image, pageFileName, RasterImageFormat.Tif, 0);
         image.Dispose();
      }
   
      RasterCodecs.Shutdown();
   }
   
   string CreateMultiPageFile(RasterCodecs codecs)
   {
      // Create a multi-page TIF file
      string[] pageFileName =
      {
         @"C:\Users\Public\Documents\LEADTOOLS Images\Ocr1.tif",
         @"C:\Users\Public\Documents\LEADTOOLS Images\Ocr2.tif",
         @"C:\Users\Public\Documents\LEADTOOLS Images\Ocr3.tif",
         @"C:\Users\Public\Documents\LEADTOOLS Images\Ocr4.tif"
      };
   
      RasterImage image = null;
   
      for(int i = 0; i < pageFileName.Length; i++)
      {
         // load the page image
         RasterImage page = codecs.Load(pageFileName[i]);
         if(i == 0)
         {
            // first image, just save it into our variable
            image = page;
         }
         else
         {
            // add this page into our image
            image.AddPage(page);
   
            // we do not need this page anymore
            page.Dispose();
         }
      }
   
      string outputFileName = @"C:\Users\Public\Documents\LEADTOOLS Images\MultiPage.tif";
   
      if(File.Exists(outputFileName))
         File.Delete(outputFileName);
   
      codecs.Save(image, outputFileName, RasterImageFormat.Tif, 1, 1, 4, 1, CodecsSavePageMode.Overwrite);
      image.Dispose();
   
      return outputFileName;
   }
   

10. Build, and Run the program to test it.