GetImages Method (PdfDocument)

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 collection that contains all image resources of this PDF document.

Here is an example that shows how to obtain information about all image resources of PDF page:

VB.NET

''' <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

C#

/// <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
*/

Target Platforms: .NET 5; .NET Core 3.1; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

Reference

PdfDocument Class
PdfDocument Members