''' <summary>
''' Prints information about image-resources of PDF document.
''' </summary>
''' <param name="pdfFilename">The filename of PDF document.</param>
Public Shared Sub GetPdfImagesInfo(pdfFilename As String)
    ' open PDF document
    Using document As New Vintasoft.Imaging.Pdf.PdfDocument(pdfFilename)
        ' get collection of image-resources of PDF document
        Dim images As Vintasoft.Imaging.Pdf.Tree.PdfImageResource() = document.GetImages()

        ' print count of image-resource
        System.Console.WriteLine("Images count: {0}", images.Length)

        ' for each image-resource
        For Each image As Vintasoft.Imaging.Pdf.Tree.PdfImageResource In images
            ' print information about image-resource
            System.Console.WriteLine(vbTab & "{0,4}x{1,-4} {2,5}bpp {3}", image.Width, image.Height, image.BitsPerPixel, image.Compression)
        Next
    End Using
End Sub

' This code example produces the following output:
  Images count: 11
    189x41      24bpp Jpeg
    120x50      24bpp Jpeg
    122x56      24bpp Jpeg
    143x41      24bpp Jpeg
    216x21      24bpp Jpeg
    106x49       8bpp Zip
    209x30      24bpp Jpeg
    189x24      24bpp Jpeg
    122x42      24bpp Jpeg
      5x7       24bpp Zip
    817x292     24bpp Jpeg
  

/// <summary>
/// Prints information about image-resources of PDF document.
/// </summary>
/// <param name="pdfFilename">The filename of PDF document.</param>
public static void GetPdfImagesInfo(string pdfFilename)
{
    // open PDF document
    using (Vintasoft.Imaging.Pdf.PdfDocument document = 
        new Vintasoft.Imaging.Pdf.PdfDocument(pdfFilename))
    {
        // get collection of image-resources of PDF document
        Vintasoft.Imaging.Pdf.Tree.PdfImageResource[] images = document.GetImages();

        // print count of image-resource
        System.Console.WriteLine("Images count: {0}", images.Length);

        // for each image-resource
        foreach (Vintasoft.Imaging.Pdf.Tree.PdfImageResource image in images)
        {
            // print information about image-resource
            System.Console.WriteLine("\t{0,4}x{1,-4} {2,5}bpp {3}", image.Width, image.Height,
                image.BitsPerPixel, image.Compression);
        }
    }
}

/* This code example produces the following output:
Images count: 11
  189x41      24bpp Jpeg
  120x50      24bpp Jpeg
  122x56      24bpp Jpeg
  143x41      24bpp Jpeg
  216x21      24bpp Jpeg
  106x49       8bpp Zip
  209x30      24bpp Jpeg
  189x24      24bpp Jpeg
  122x42      24bpp Jpeg
    5x7       24bpp Zip
  817x292     24bpp Jpeg
*/