We use cookies to give you the best experience on our website. If you continue to browse, then you agree to our privacy policy and cookie policy. Image for the cookie policy date
Unfortunately, activation email could not send to your email. Please try again.
Syncfusion Feedback

How to use Pdfium rendering engine in Syncfusion PDF viewer for exporting the PDF documents into images

Platform: ASP.NET MVC |
Control: PdfViewer |
Published Date: May 21, 2018 |
Last Revised Date: October 11, 2018

From and higher versions of Essential Studio release, the PDF viewer control provides a robust rendering of PDF document using Pdfium rendering engine. You can use Pdfium rendering to Export the PDF documents to images in the ASP.NET platform using the  Syncfusion.PdfViewer.Windows reference. The steps to use Pdfium rendering are as follows:

1. Copy the Pdfium assembly’s folder to a local folder from the installation path. The folder name must be “Pdfium”. 

The Pdfium assemblies will be available in

{$SystemDrive}:\Program Files (x86)\Syncfusion\Essential Studio\{Essential Studio version}\Pdfium



Note: The Pdfium folder contains two folders namely X86 and X64, and both contains pdfium.dll assembly for the respective architecture. The Syncfusion PDF viewer is designed to detect the architecture of the target machine in which it is deployed and pick corresponding pdfium.dll to use it.



2. Then, the ReferencePath property of the PDF viewer should be set to locate the “Pdfium” folder.The following code snippet illustrates how to export the PDF document into images using the PDFium.

        string mappath = HttpContext.Current.Server.MapPath ("~/Data/Sample.pdf");

            PdfViewerControl viewer = new PdfViewerControl();

       //Set the reference path of Pdfium assemblies           

           viewer.ReferencePath = "D:/";

      //Set the rendering engine of PDF viewer to Pdfium

            viewer.RenderingEngine = PdfRenderingEngine.Pdfium;

      //Load the PDF document


    string imagePath = HttpContext.Current.Server.MapPath("~/Images/");

        Bitmap[] img = viewer.ExportAsImage(0, viewer.PageCount-1);

            for (int i = 0; i < img.Length; i++)


                img[i].Save(imagePath + "\\Image" + i + ".png");



Sample link: http://www.syncfusion.com/downloads/support/directtrac/general/ze/PdfViewerWeb_pdfium1045004189 

2X faster development

The ultimate ASP.NET MVC UI toolkit to boost your development speed.
You must log in to leave a comment

Please sign in to access our KB

This page will automatically be redirected to the sign-in page in 10 seconds.

Up arrow icon

Warning Icon You are using an outdated version of Internet Explorer that may not display all features of this and other websites. Upgrade to Internet Explorer 8 or newer for a better experience.Close Icon

Live Chat Icon For mobile
Live Chat Icon