Enabling Signature Panel in WebView2: WPF Application

[johnypc]

I'm utilizing WPF WebView2 to present PDF documents, but I'm encountering an issue where the signature panel doesn't appear. Upon investigating, I found a solution in the Edge browser by enabling the "Enable Digital Signature for PDF" option in the edge://flags page.

However, I'm unsure how to achieve the same outcome within my WPF application. How can I programmatically disable this feature using WebView2 in my WPF application?

<Grid>
    <Wpf:WebView2 Name="webview" HorizontalAlignment="Left" Height="712" Margin="53,10,0,0" VerticalAlignment="Top" Width="784"  />
</Grid>

 public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            InitializeWebView();
        }
        private async void InitializeWebView()
        {
            await webview.EnsureCoreWebView2Async(null);
            webview.Source = new Uri(@"C:\Test\Exported.pdf");
        }
    }