GetImages Method (PdfPage)

In This Topic

Returns a read-only collection that contains image-resources of this page.

Syntax

Visual Basic
C#
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Function GetImages() As PdfImageResource()

public PdfImageResource[] GetImages()

public: PdfImageResource*[]* GetImages();

public:
array<PdfImageResource^>^ GetImages();

Return Value

The read-only collection that contains image-resources of this page.

Example

This example shows how to obtain an information about image resources of all PDF pages.

VB.NET

''' <summary>
''' Gets and prints information about PDF image resources.
''' </summary>
''' <param name="pdfFileName">The filename of PDF document.</param>
Public Shared Sub GetImageResourcesInfo(pdfFileName As String)
    ' open PDF document
    Using document As New Vintasoft.Imaging.Pdf.PdfDocument(pdfFileName)
        ' for each PDF page
        For pageIndex As Integer = 0 To document.Pages.Count - 1
            ' get PDF page
            Dim page As Vintasoft.Imaging.Pdf.Tree.PdfPage = document.Pages(pageIndex)
            ' get a collection of PDF image resources of page
            Dim imageResources As Vintasoft.Imaging.Pdf.Tree.PdfImageResource() = page.GetImages()
            ' print the page index and count of image resources
            System.Console.WriteLine("Page {0} Image resources count: {1}", pageIndex + 1, imageResources.Length)
            ' for each image resource
            For Each imageResource As Vintasoft.Imaging.Pdf.Tree.PdfImageResource In imageResources
                ' print information about image resource
                System.Console.WriteLine(vbTab & " {0}x{1} {2,5}bpp {3}", imageResource.Width, imageResource.Height, imageResource.BitsPerPixel, imageResource.Compression)
            Next
        Next
    End Using
End Sub
            
' This code example produces the following output: 
  
  Page 1 Image resources count: 9
       157x139    32bpp Zip
       157x139     8bpp Jpeg
       700x596    24bpp Jpeg
       686x585    24bpp Jpeg
       459x317    32bpp Jpeg
       459x317     8bpp Zip, Predictor
       484x487    32bpp Jpeg
       484x487     8bpp Zip, Predictor
       824x537    24bpp Zip
  Page 2 Image resources count: 0

/// <summary>
/// Gets and prints information about PDF image resources.
/// </summary>
/// <param name="pdfFileName">The filename of PDF document.</param>
public static void GetImageResourcesInfo(string pdfFileName)
{
    // open PDF document
    using (Vintasoft.Imaging.Pdf.PdfDocument document = new Vintasoft.Imaging.Pdf.PdfDocument(pdfFileName))
    {
        // for each PDF page
        for (int pageIndex = 0; pageIndex < document.Pages.Count; pageIndex++)
        {
            // get PDF page
            Vintasoft.Imaging.Pdf.Tree.PdfPage page = document.Pages[pageIndex];
            // get a collection of PDF image resources of page
            Vintasoft.Imaging.Pdf.Tree.PdfImageResource[] imageResources = page.GetImages();
            // print the page index and count of image resources
            System.Console.WriteLine("Page {0} Image resources count: {1}", pageIndex + 1, imageResources.Length);
            // for each image resource
            foreach (Vintasoft.Imaging.Pdf.Tree.PdfImageResource imageResource in imageResources)
            {
                // print information about image resource
                System.Console.WriteLine("\t {0}x{1} {2,5}bpp {3}",
                    imageResource.Width, imageResource.Height,
                    imageResource.BitsPerPixel, imageResource.Compression);
            }
        }
    }
}
            
/* This code example produces the following output: 
            
Page 1 Image resources count: 9
     157x139    32bpp Zip
     157x139     8bpp Jpeg
     700x596    24bpp Jpeg
     686x585    24bpp Jpeg
     459x317    32bpp Jpeg
     459x317     8bpp Zip, Predictor
     484x487    32bpp Jpeg
     484x487     8bpp Zip, Predictor
     824x537    24bpp Zip
Page 2 Image resources count: 0         
*/

Requirements

Target Platforms: Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Windows Server 2012, Windows Server 2008, Windows Server 2003

Reference

PdfPage Class
PdfPage Members

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