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How to use Pdfium rendering engine in Syncfusion PDF viewer for WPF

Platform: WPF |
Control: PdfViewer |
Published Date: March 7, 2018 |
Last Revised Date: September 12, 2018


From and higher versions of Essential Studio release, the PDF viewer control provides a robust rendering of PDF document using PDFium rendering engine. Use the following steps to use Pdfium rendering in Syncfusion PDF viewer.


  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 such as X86 and X64, and both folders contain pdfium.dll assembly for the respective architecture. The Syncfusion PDF viewer is designed to detect the architecture of the target machine where it is deployed and will pick corresponding pdfium.dll to use it.




  1. The ReferencePath property of the PDF viewer should be set to locate the “Pdfium” folder.


The following code snippet illustrates this.


Find the demo form http://www.syncfusion.com/downloads/support/directtrac/general/ze/WPF864312441


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Jenei Péter
Nov 27, 2018


I think this information is not correct. Let me quote from the documentation:

"ReferencePath Property (PdfViewerControl)

ReferencePath is deprecated"

The C# complier also warns that it is obsolete. The same is true for PdfDocumentView.ReferencePath.

I hope this helps improving the documentation.



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