How to: Export a PDF Document to a Bitmap

• Apr 08, 2019
• 2 minutes to read

Important

You require a license to the DevExpress Office File API or DevExpress Universal Subscription to use these examples in production code. Refer to the DevExpress Subscription page for pricing information.

The following example demonstrates how to export pages to bitmap images.

Follow the steps below to perform the export:

• Create a PdfDocumentProcessor instance and load the PDF document using the overloaded PdfDocumentProcessor.LoadDocument method.
• Call the PdfDocumentProcessor.CreateBitmap method using the page number and thelargestEdgeLength parameter (measured in pixels). This parameter determines the output image’s height for pages in the portrait orientation and width for landscape pages.
• Save the converted bitmap images to a file using the overloaded Bitmap.Save method.

Note

Show Me The complete sample project is available at https://github.com/DevExpress-Examples/how-to-export-a-pdf-document-to-multi-page-tiff-and-bitmap

C#

using DevExpress.Pdf;
using System.Drawing;

namespace ExportToBitmap {
    class Program {

        static void Main(string[] args) {

            int largestEdgeLength = 1000;

            // Create a PDF Document Processor.
            using (PdfDocumentProcessor processor = new PdfDocumentProcessor()) {

                // Load a document. 
                processor.LoadDocument("..\\..\\Document.pdf");

                for (int i = 1; i <= processor.Document.Pages.Count; i++) {

                    // Export pages to bitmaps.
                    Bitmap image = processor.CreateBitmap(i, largestEdgeLength);

                    // Save the bitmaps.
                    image.Save("..\\..\\MyBitmap" + i + ".bmp");
                }
            }
        }
    }
}

VB.NET

Imports DevExpress.Pdf
Imports System.Drawing

Namespace ExportToBitmap
    Class Program
        Private Shared Sub Main(ByVal args As String())
            Dim largestEdgeLength As Integer = 1000

            Using processor As PdfDocumentProcessor = New PdfDocumentProcessor()
                processor.LoadDocument("..\..\Document.pdf")

                For i As Integer = 1 To processor.Document.Pages.Count
                    Dim image As Bitmap = processor.CreateBitmap(i, largestEdgeLength)
                    image.Save("..\..\MyBitmap" & i & ".bmp")
                Next
            End Using
        End Sub
    End Class
End Namespace