test.cshtml

@Html.TXTextControl().DocumentViewer(settings =>
{
    settings.DocumentPath = Server.MapPath("~/App_Data/Documents/nda.tx");
    settings.Dock = DocumentViewerSettings.DockStyle.Fill;
    settings.SignatureSettings = new SignatureSettings()
    {
        ShowSignatureBar = true,
        OwnerName = "Paul Paulsen",
        SignerName = "Tim Typer",
        SignerInitials = "TT",
        SignatureBoxName = "txsign",
        UniqueId = uniqueID,

        CustomSignatureData = new SignatureData() {
            Barcode = "123",
            IPAddress = Request.UserHostAddress,
            Signer = "Tim Typer",
            UniqueID = uniqueID
        }

    };
}).Render()