gsdll32.dll error c# while reading qr code
<p><strong>I am receiving this error while reading qr code from a pdf file :</strong> </p>

<blockquote>
  <p>An unhandled exception of type 'System.ApplicationException' occurred in PdfToImage.dll
  Additional information: The gsdll32.dll you provide is not compatible with the current architecture that is 64bit,Please download any version above version 8.64 from the original website in the 64bit or x64 or AMD64 version!</p>
</blockquote>

<p>I am trying to read qr with a project from CodeProject. Here is the project link : <a href="http://www.codeproject.com/Articles/99362/Scan-and-Read-the-Barcode-from-PDF-File" rel="nofollow">Scan and Read QR Code From PDF</a></p>

<p>I tried replace gsdll32.dll with older version but it didn't work. </p>

<p>How can I solve this problem?</p>