使用WebBrowser-Control在WPF中显示本地PDF文件

I'm trying to display a local PDF file in a WebBrowser-Control. I didn't want to use the Adobe-Libraries, because they don't support 64-bit. Now I already have the code to display a PDF, but only if it is not on the local HDD. When I right-clicked on the WebBrowser-Control and displayed the SourceCode of the HTML, I saved it as an HTML-File to check, if the HTML-Code is correctly working. Well, it works.I'm trying to display a local PDF file in a Web