test.cshtml

@Html.TXTextControl().DocumentViewer(settings => {
    settings.DocumentPath = "App_Data/nda.tx";
    settings.Dock = DocumentViewerSettings.DockStyle.Fill;
    settings.SignatureSettings = new SignatureSettings() {
        RedirectUrlAfterSignature = this.Url.Action(
            "HandleSignature", 
            "Home", 
            new { securityToken = "1234" }, 
            Context.Request.Scheme, 
            null),
        ShowSignatureBar = true,
        SignerName = "Tim Typer",
        UniqueId = "1234-1234-1234-1234"
    };
}).Render()