You can use this class to save the output of merged and splitted file.
To view the image per page on PictureBox or any picture control tool, get its frame example
image.SelectActiveFrame(frameDim, Pages[i];

using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing.Imaging;
using System.IO;
using System.Drawing;
using System.Text.RegularExpressions;
using System.Collections;
using System.ComponentModel;
using System.Runtime.InteropServices;
namespace DocImageUtility
{
public class TIFManager
{
private string TIFF_CODEC = "image/tiff";
private long ENCODING_SCHEME = (long)EncoderValue.CompressionCCITT4;
public string SelectedPages { get; set; }
public int NumberOfPages { get; set; }
public string FilePath { get; set; }
public bool newfile = true;
public bool newdocument = true;
Image Document;
EncoderParameters encoderParams;
public int SelectedPageCount { get { return Pages.Length; } }
//First method to call in order to load the file and get its contents and pages
public void Load(string path)
{
this.FilePath = path;
//Get the frame dimension list from the image of the file and
Image tiffImage = Image.FromFile(path);
//get the globally unique identifier (GUID)
Guid objGuid = tiffImage.FrameDimensionsList[0];
//create the frame dimension
FrameDimension dimension = new FrameDimension(objGuid);
//Gets the total number of frames in the .tiff file
NumberOfPages = tiffImage.GetFrameCount(dimension);
tiffImage.Dispose();
}
//Split Method
public void Split(string splittedFileName)
{
//Get its file information
ImageCodecInfo codecInfo = GetCodecInfo(TIFF_CODEC);
EncoderParameters encoderParams = new EncoderParameters(2);
encoderParams.Param[0] = new
EncoderParameter(System.Drawing.Imaging.Encoder.SaveFlag, (long)EncoderValue.MultiFrame);
encoderParams.Param[1] = new
EncoderParameter(System.Drawing.Imaging.Encoder.Quality, ENCODING_SCHEME);
//Load the Document
FileStream fs = new FileStream(this.FilePath, FileMode.OpenOrCreate);
Image image = Image.FromStream(fs);
//Get file frame/pages
FrameDimension frameDim = new FrameDimension(image.FrameDimensionsList[0]);
//Check if selected pages is null or 0 value
if (SelectedPages != null)
{
// Delete / Overwrite existing file if updating Splitted Image File
var file = new FileInfo(splittedFileName);
if (file.Exists) file.Delete();
//for each frame/pages create the new document
for (int i = 0; i < Pages.Length; i++)
{
//check whether selected pages is not greater than the file pages
if (Pages.Length >= (i + 1))
{
//Selected image frame
image.SelectActiveFrame(frameDim, Pages[i]);
//check whether file is new document
if (newfile == true)
{
image.Save(splittedFileName, codecInfo, encoderParams);
newfile = false;
}
else
//append the document depending on the selected frame from the original image
{
encoderParams.Param[0] = new
EncoderParameter(System.Drawing.Imaging.Encoder.SaveFlag,
(long)EncoderValue.FrameDimensionPage);
image.SaveAdd(image, encoderParams);
}
}
}
fs.Close();
}
}
//Merge Method
public void Merge(string MergeFileName, string source)
{
//Set its Image Format as TIFF
ImageCodecInfo codecInfo = GetCodecInfo(TIFF_CODEC);
//Load the Document
FileStream fs = new FileStream(source, FileMode.OpenOrCreate);
Image image = Image.FromStream(fs);
//Get file frame/pages
FrameDimension frameDim = new FrameDimension(image.FrameDimensionsList[0]);
if (newdocument == true)
{
//Set its Image Type
encoderParams = new EncoderParameters(2);
encoderParams.Param[0] = new
EncoderParameter(System.Drawing.Imaging.Encoder.SaveFlag,
(long)EncoderValue.MultiFrame);
encoderParams.Param[1] = new
EncoderParameter(System.Drawing.Imaging.Encoder.Quality, ENCODING_SCHEME);
//Check if selected pages is null or 0 value
if (SelectedPages != null)
{
//for each frame/pages create the new document
for (int i = 0; i < image.GetFrameCount(frameDim); i++)
{
//check whether selected pages is not greater than the file pages
if (Pages.Length >= (i + 1))
{
//Selected image frame
image.SelectActiveFrame(frameDim, Pages[i]);
//check whether file is new document
if (newfile == true)
{
//create new filename
Document = image;
//save
Document.Save(MergeFileName, codecInfo, encoderParams);
encoderParams.Param[0] =
new EncoderParameter(System.Drawing.Imaging.Encoder.SaveFlag,
(long)EncoderValue.FrameDimensionPage);
newfile = false;
newdocument = false;
}
else
{
//append the document depending on the selected frame from the original image
Document.SaveAdd(image, encoderParams);
}
}
}
fs.Close();
}
}
else
{
//Check if selected pages is null or 0 value
if (SelectedPages != null)
{
//for each frame/pages create the new document
for (int i = 0; i < image.GetFrameCount(frameDim); i++)
{
//check whether selected pages is not greater than the file pages
if (Pages.Length >= (i + 1))
{
//Selected image frame
image.SelectActiveFrame(frameDim, Pages[i]);
//check whether file is new document
//append the document depending on the selected frame from the original image
Document.SaveAdd(image, encoderParams);
}
}
fs.Close();
}
}
}
//Check whether selected pages is valid
public int[] Pages
{
get
{
ArrayList ps = new ArrayList();
string[] ss = SelectedPages.Split(new char[] { ',', ' ', ';' });
foreach (string s in ss)
if (Regex.IsMatch(s, @"\d+-\d+"))
{
int start = int.Parse(s.Split(new char[] { '-' })[0]);
int end = int.Parse(s.Split(new char[] { '-' })[1]);
if (start > end)
return new int[] { 0 };
while (start <= end)
{
ps.Add(start - 1);
start++;
}
}
else
{
int i;
int.TryParse(s, out i);
if (i > 0)
ps.Add(int.Parse(s) - 1);
}
return ps.ToArray(typeof(int)) as int[];
}
}
private ImageCodecInfo GetCodecInfo(string codec)
{
ImageCodecInfo codecInfo = null;
foreach (ImageCodecInfo info in ImageCodecInfo.GetImageEncoders())
{
if (info.MimeType == codec)
{
codecInfo = info;
break;
}
}
return codecInfo;
}
}
}