How to extract images from PDF by pages in C#, VB.NET and VBScript using PDF Extractor SDK

These samples show how to extract images from PDF by pages in C#, VB.NET, and VBScript using Bytescout PDF Extractor SDK.

Also, see the following tutorial if you need to extract image coordinates from PDF.

Select your programming language:

• C#
• Visual Basic .NET
• VBScript (Visual Basic 6)

How to extract images by pages from PDF files in C#

using System;
using System.Drawing.Imaging;
using Bytescout.PDFExtractor;

namespace ExtractImagesByPages
{
	class Program
	{
		static void Main(string[] args)
		{
			// Create Bytescout.PDFExtractor.ImageExtractor instance
			ImageExtractor extractor = new ImageExtractor();
			extractor.RegistrationName = "demo";
			extractor.RegistrationKey = "demo";

			// Load sample PDF document
			extractor.LoadDocumentFromFile("sample1.pdf");

			// Get count of pages
			int pageCount = extractor.GetPageCount();

			// Extract images from each page
			for (int i = 0; i < pageCount; i++)
			{
				int j = 0;
				
				// Initialize page images enumeration
				if (extractor.GetFirstPageImage(i))
				{
					do
					{
						string outputFileName = "page" + i + "image" + j + ".png";

						// Save image to file
						extractor.SaveCurrentImageToFile(outputFileName, ImageFormat.Png);

						j++;

					} while (extractor.GetNextImage()); // Advance image enumeration
				}
			}
			
			// Open first output file in default associated application
			System.Diagnostics.Process.Start("page0image0.png");
		}
	}
}

How to extract images by pages from PDF files in Visual Basic .NET

Imports Bytescout.PDFExtractor
Imports System.Drawing.Imaging

Class Program
	Friend Shared Sub Main(args As String())

        ' Create Bytescout.PDFExtractor.ImageExtractor instance
        Dim extractor As New ImageExtractor()
		extractor.RegistrationName = "demo"
		extractor.RegistrationKey = "demo"

		' Load sample PDF document
        extractor.LoadDocumentFromFile("sample1.pdf")

        ' Get count of pages
		Dim pageCount As Integer = extractor.GetPageCount()

        ' Extract images from each page
        For i As Integer = 0 To pageCount - 1

            Dim j As Integer = 0

            ' Initialize page images enumeration
            If extractor.GetFirstPageImage(i) Then
                Do
                    Dim outputFileName As String = "page" & i & "image" & j & ".png"

                    ' Save image to file
                    extractor.SaveCurrentImageToFile(outputFileName, ImageFormat.Png)

                    j = j + 1

                Loop While extractor.GetNextImage() ' Advance image enumeration
            End If

        Next

		' Open first output file in default associated application
        System.Diagnostics.Process.Start("page0image0.png")
	End Sub
End Class

How to extract images by pages from PDF files in VBScript (Visual Basic 6)

' Create Bytescout.PDFExtractor.ImageExtractor object
Set extractor = CreateObject("Bytescout.PDFExtractor.ImageExtractor")
extractor.RegistrationName = "demo"
extractor.RegistrationKey = "demo"

' Load sample PDF document
extractor.LoadDocumentFromFile("..\..\sample1.pdf")

' Get page count
pageCount = extractor.GetPageCount()
		
' Extract images from each page
For i = 0 To pageCount - 1

	j = 0
	
	' Initialize page images enumeration
	If extractor.GetFirstPageImage(i) Then
	    Do
	        outputFileName = "page" & i & "image" & j & ".png"

	        ' Save image to file
	        extractor.SaveCurrentImageToFile outputFileName

	        j = j + 1

	    Loop While extractor.GetNextImage() ' Advance image enumeration
	End If
Next

' Open first output file in default associated application
Set shell = CreateObject("WScript.Shell")
shell.Run "page0image0.png", 1, false
Set shell = Nothing

Set extractor = Nothing