TIFF: How to remove page from TIFF file?

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Page of TIFF file can be removed:

virtually - page removed from catalog of TIFF file, page data is not removed i.e. size of TIFF file is not changed
physically - page removed from catalog of TIFF file, page data removed i.e. size of TIFF file is decreased

Here is an example that shows how to "virtually" remove page from TIFF file:

VB.NET

' The project, which uses this code, must have references to the following assemblies:
' - Vintasoft.Imaging

Public Sub VirtuallyRemovePageFromTiffFile(stream As System.IO.Stream, pageIndex As Integer)
    ' open TIFF file
    Using tiff As New Vintasoft.Imaging.Codecs.ImageFiles.Tiff.TiffFile(stream)
        ' remove page at specified index
        tiff.Pages.RemoveAt(pageIndex)

        ' save changes
        tiff.SaveChanges()
    End Using
End Sub

// The project, which uses this code, must have references to the following assemblies:
// - Vintasoft.Imaging

public void VirtuallyRemovePageFromTiffFile(System.IO.Stream stream, int pageIndex)
{
    // open TIFF file
    using (Vintasoft.Imaging.Codecs.ImageFiles.Tiff.TiffFile tiff = 
        new Vintasoft.Imaging.Codecs.ImageFiles.Tiff.TiffFile(stream))
    {
        // remove page at specified index
        tiff.Pages.RemoveAt(pageIndex);

        // save changes
        tiff.SaveChanges();
    }
}

Here is an example that shows how to "physically" remove page from TIFF file:

VB.NET

' The project, which uses this code, must have references to the following assemblies:
' - Vintasoft.Imaging

Public Sub PhysicallyRemovePageFromTiffFile(stream As System.IO.Stream, pageIndex As Integer, outputStream As System.IO.Stream)
    ' open TIFF file
    Using tiff As New Vintasoft.Imaging.Codecs.ImageFiles.Tiff.TiffFile(stream)
        ' remove page at specified index
        tiff.Pages.RemoveAt(pageIndex)

        ' save modified TIFF file to the outputStream,
        ' the source TIFF file is not changed
        tiff.Pack(outputStream)
    End Using
End Sub

// The project, which uses this code, must have references to the following assemblies:
// - Vintasoft.Imaging

public void PhysicallyRemovePageFromTiffFile(
    System.IO.Stream stream, int pageIndex, System.IO.Stream outputStream)
{
    // open TIFF file
    using (Vintasoft.Imaging.Codecs.ImageFiles.Tiff.TiffFile tiff = 
        new Vintasoft.Imaging.Codecs.ImageFiles.Tiff.TiffFile(stream))
    {
        // remove page at specified index
        tiff.Pages.RemoveAt(pageIndex);

        // save modified TIFF file to the outputStream,
        // the source TIFF file is not changed
        tiff.Pack(outputStream);
    }
}

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