I have a tab on my page, when i click on this tab, i need to show a pdf file on page(browser). For this i am writing function on control like this

public ActionResult PricedPdf(string projID,string fileName)
        {

            byte[] bArr = new byte[] { };
            bArr =getdata();

            return File(bArr, System.Net.Mime.MediaTypeNames.Application.Pdf, fileName+".pdf");
        }

Now my problem is when i render this, page only show some unreadable data not pdf.