public void GetInfoAboutJbig(System.IO.Stream stream)
{
    // open JBIG2 file
    using (Vintasoft.Imaging.Codecs.ImageFiles.Jbig2.Jbig2File jbig2File = 
        new Vintasoft.Imaging.Codecs.ImageFiles.Jbig2.Jbig2File(stream))
    {
        System.Console.WriteLine(string.Format("Pages count: {0}", jbig2File.Pages.Count));

        // for each page of JBIG2 file
        Vintasoft.Imaging.Codecs.ImageFiles.Jbig2.Jbig2Page page;
        for (int i = 0; i < jbig2File.Pages.Count; i++)
        {
            // show information about image of JBIG2 page
            page = jbig2File.Pages[i];
            System.Console.WriteLine(string.Format("  Page {0}:", i));
            System.Console.WriteLine(string.Format("  - Width = {0}", page.Width));
            System.Console.WriteLine(string.Format("  - Height = {0}", page.Height));
            System.Console.WriteLine(string.Format("  - Resolution = {0}", page.Resolution));
        }
    }
}

Public Sub GetInfoAboutJbig(stream As System.IO.Stream)
    ' open JBIG2 file
    Using jbig2File As New Vintasoft.Imaging.Codecs.ImageFiles.Jbig2.Jbig2File(stream)
        System.Console.WriteLine(String.Format("Pages count: {0}", jbig2File.Pages.Count))

        ' for each page of JBIG2 file
        Dim page As Vintasoft.Imaging.Codecs.ImageFiles.Jbig2.Jbig2Page
        For i As Integer = 0 To jbig2File.Pages.Count - 1
            ' show information about image of JBIG2 page
            page = jbig2File.Pages(i)
            System.Console.WriteLine(String.Format("  Page {0}:", i))
            System.Console.WriteLine(String.Format("  - Width = {0}", page.Width))
            System.Console.WriteLine(String.Format("  - Height = {0}", page.Height))
            System.Console.WriteLine(String.Format("  - Resolution = {0}", page.Resolution))
        Next
    End Using
End Sub