test.cshtml

@Html.TXTextControl().DocumentViewer(settings =>
{
    settings.DocumentPath = "App_Data/documentflows/"
        + Model.EnvelopeId + "/template.tx";
    settings.Dock = DocumentViewerSettings.DockStyle.Fill;
    settings.SignatureSettings = new SignatureSettings() {
        OwnerName = Model.Owner,
        ShowSignatureBar = true,
        SignerInitials = Model.Signer.Initials,
        SignerName = Model.Signer.Name,
        UniqueId = Model.EnvelopeId,
        RedirectUrlAfterSignature = Url.Action("Sign", "Sign", new { signerId = Model.Signer.Id } , Context.Request.Scheme, null),
        SignatureBoxes = new SignatureBox[] {
            new SignatureBox(Model.Signer.SignatureFieldName) {
                SigningRequired = true, Style = SignatureBox.SignatureBoxStyle.Signature }
        }
    };
}).Render()