Appending images from files of different formats to an existing single or multipage TIFF file is constantly one of the most required features. Here you can find the quick way how to accomplish this task very easy.

• The first example shows you how to append modified pages from a multipage TIFF file to another existing TIFF file.
  • VB.NET
  • C#

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  'We assume that GdPicture has been correctly installed and unlocked. Using oGdPictureImaging As GdPictureImaging = New GdPictureImaging() oGdPictureImaging.TiffOpenMultiPageForWrite(True) 'Load your source image here, for example a multipage TIFF file. Dim ImageID As Integer = oGdPictureImaging.CreateGdPictureImageFromFile("input_multipage.tif", True) If oGdPictureImaging.GetStat() = GdPictureStatus.OK Then Dim PageCount As Integer = oGdPictureImaging.TiffGetPageCount(ImageID) Dim status As GdPictureStatus = GdPictureStatus.OK If PageCount > 0 Then Dim ImgTiffCompression As TiffCompression = oGdPictureImaging.GetTiffCompression(ImageID) For i As Integer = 1 To PageCount status = oGdPictureImaging.TiffSelectPage(ImageID, i) If status = GdPictureStatus.OK Then 'Modify the source image according to your needs. status = oGdPictureImaging.DrawText(ImageID, "Page " + i.ToString() + " / " + PageCount.ToString(), 50, 50, 10, GdPicture14.FontStyle.FontStyleRegular, Color.Black, "Arial", True) If status = GdPictureStatus.OK Then status = oGdPictureImaging.AppendToTiff(ImageID, "output_existing.tif", ImgTiffCompression) If status <> GdPictureStatus.OK Then Exit For Else Exit For End If Next Else 'The source file is not a multipage file. status = oGdPictureImaging.DrawText(ImageID, "Page 1/1", 50, 50, 10, GdPicture14.FontStyle.FontStyleRegular, Color.Black, "Arial", True) If status = GdPictureStatus.OK Then status = oGdPictureImaging.AppendToTiff(ImageID, "output_existing.tif", TiffCompression.TiffCompressionAUTO) End If If status = GdPictureStatus.OK Then MessageBox.Show("The process has finished successfully.", "Append To TIFF Example", MessageBoxButtons.OK, MessageBoxIcon.Information) Else MessageBox.Show("The process has failed. Status: " + status.ToString(), "Append To TIFF Example", MessageBoxButtons.OK, MessageBoxIcon.Error) End If oGdPictureImaging.ReleaseGdPictureImage(ImageID) Else MessageBox.Show("The source file can't be loaded. Status: " + oGdPictureImaging.GetStat().ToString(), "Append To TIFF Example", MessageBoxButtons.OK, MessageBoxIcon.Error) End If End Using

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  //We assume that GdPicture has been correctly installed and unlocked. using (GdPictureImaging oGdPictureImaging = new GdPictureImaging()) { oGdPictureImaging.TiffOpenMultiPageForWrite(true); //Load your source image here, for example a multipage TIFF file. int ImageID = oGdPictureImaging.CreateGdPictureImageFromFile("input_multipage.tif", true); if (oGdPictureImaging.GetStat() == GdPictureStatus.OK) { int PageCount = oGdPictureImaging.TiffGetPageCount(ImageID); GdPictureStatus status = GdPictureStatus.OK; if (PageCount > 0) { TiffCompression ImgTiffCompression = oGdPictureImaging.GetTiffCompression(ImageID); for (int i = 1; i <= PageCount; i++) { status = oGdPictureImaging.TiffSelectPage(ImageID, i); if (status == GdPictureStatus.OK) { //Modify the source image according to your needs. status = oGdPictureImaging.DrawText(ImageID, "Page " + i.ToString() + " / " + PageCount.ToString(), 50, 50, 10, GdPicture14.FontStyle.FontStyleRegular, Color.Black, "Arial", true); if (status == GdPictureStatus.OK) status = oGdPictureImaging.AppendToTiff(ImageID, "output_existing.tif", ImgTiffCompression); if (status != GdPictureStatus.OK) break; } else break; } } else { //The source file is not a multipage file. status = oGdPictureImaging.DrawText(ImageID, "Page 1/1", 50, 50, 10, GdPicture14.FontStyle.FontStyleRegular, Color.Black, "Arial", true); if (status == GdPictureStatus.OK) status = oGdPictureImaging.AppendToTiff(ImageID, "output_existing.tif", TiffCompression.TiffCompressionAUTO); } if (status == GdPictureStatus.OK) MessageBox.Show("The process has finished successfully.", "Append To TIFF Example", MessageBoxButtons.OK, MessageBoxIcon.Information); else MessageBox.Show("The process has failed. Status: " + status.ToString(), "Append To TIFF Example", MessageBoxButtons.OK, MessageBoxIcon.Error); oGdPictureImaging.ReleaseGdPictureImage(ImageID); } else MessageBox.Show("The source file can't be loaded. Status: " + oGdPictureImaging.GetStat().ToString(), "Append To TIFF Example", MessageBoxButtons.OK, MessageBoxIcon.Error); }

•  The second example demonstrates the very simple way how to append JPEG images to a new or an existing TIFF file.
  • VB.NET
  • C#

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  'We assume that GdPicture has been correctly installed and unlocked. Using dialog As FolderBrowserDialog = New FolderBrowserDialog() dialog.Description = "Select the folder you want to append your files from." dialog.ShowNewFolderButton = False dialog.RootFolder = Environment.SpecialFolder.Desktop If dialog.ShowDialog() = DialogResult.OK Then Dim status As GdPictureStatus = GdPictureStatus.OK Dim folder As String = dialog.SelectedPath For Each fName As String In Directory.GetFiles(folder, "*.jpg", SearchOption.TopDirectoryOnly) Using oGdPictureImaging As GdPictureImaging = New GdPictureImaging() Dim ImageID As Integer = oGdPictureImaging.CreateGdPictureImageFromFile(fName, True) If oGdPictureImaging.GetStat() = GdPictureStatus.OK Then 'If the resulting file does not exist, the toolkit will create a new one. status = oGdPictureImaging.AppendToTiff(ImageID, "output.tif", TiffCompression.TiffCompressionJPEG, 95) oGdPictureImaging.ReleaseGdPictureImage(ImageID) If status <> GdPictureStatus.OK Then MessageBox.Show("The source file " + fName + " can't be appended. Status: " + oGdPictureImaging.GetStat().ToString(), "Append To TIFF Example", MessageBoxButtons.OK, MessageBoxIcon.Error) Exit For End If Else MessageBox.Show("The source file " + fName + " can't be loaded. Status: " + oGdPictureImaging.GetStat().ToString(), "Append To TIFF Example", MessageBoxButtons.OK, MessageBoxIcon.Error) End If End Using Next If status = GdPictureStatus.OK Then MessageBox.Show("The process has finished successfully.", "Append To TIFF Example", MessageBoxButtons.OK, MessageBoxIcon.Information) End If End Using

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  //We assume that GdPicture has been correctly installed and unlocked. using (FolderBrowserDialog dialog = new FolderBrowserDialog()) { dialog.Description = "Select the folder you want to append your files from."; dialog.ShowNewFolderButton = false; dialog.RootFolder = Environment.SpecialFolder.Desktop; if (dialog.ShowDialog() == DialogResult.OK) { GdPictureStatus status = GdPictureStatus.OK; string folder = dialog.SelectedPath; foreach (string fName in Directory.GetFiles(folder, "*.jpg", SearchOption.TopDirectoryOnly)) { using (GdPictureImaging oGdPictureImaging = new GdPictureImaging()) { int ImageID = oGdPictureImaging.CreateGdPictureImageFromFile(fName, true); if (oGdPictureImaging.GetStat() == GdPictureStatus.OK) { //If the resulting file does not exist, the toolkit will create a new one. status = oGdPictureImaging.AppendToTiff(ImageID, "output.tif", TiffCompression.TiffCompressionJPEG, 95); oGdPictureImaging.ReleaseGdPictureImage(ImageID); if (status != GdPictureStatus.OK) { MessageBox.Show("The source file " + fName + " can't be appended. Status: " + oGdPictureImaging.GetStat().ToString(), "Append To TIFF Example", MessageBoxButtons.OK, MessageBoxIcon.Error); break; } } else MessageBox.Show("The source file " + fName + " can't be loaded. Status: " + oGdPictureImaging.GetStat().ToString(), "Append To TIFF Example", MessageBoxButtons.OK, MessageBoxIcon.Error); } } if (status == GdPictureStatus.OK) MessageBox.Show("The process has finished successfully.", "Append To TIFF Example", MessageBoxButtons.OK, MessageBoxIcon.Information); } }