test.cshtml

@Html.TXTextControl().DocumentViewer(settings =>
{
    settings.DocumentPath = Server.MapPath("~/App_Data/documentflows/"
        + Model.EnvelopeId + "/" + Model.Template);
    settings.Dock = DocumentViewerSettings.DockStyle.Fill;
    settings.SignatureSettings = new SignatureSettings()
    {
        OwnerName = Model.Owner,
        ShowSignatureBar = true,
        SignatureBoxName = Model.Signer.SignatureBoxName,
        SignerInitials = Model.Signer.Initials,
        SignerName = Model.Signer.FirstName + " " + Model.Signer.Name,
        UniqueId = Model.EnvelopeId
    };
}).Render()