To enter pdf and docx file in the database

Question

 try

        {

            oCommonBLL.Extension = Path.GetExtension(FileResume.FileName);

            if (oCommonBLL.Extension == ".doc" || oCommonBLL.Extension == ".docx" || oCommonBLL.Extension == ".pdf")

            {

                int fileSize = FileResume.PostedFile.ContentLength;

                byte[] documentBinary = new byte[fileSize];

                FileResume.PostedFile.InputStream.Read(documentBinary, 0, fileSize);

                oCommonBLL.byResume = documentBinary;

            }

        }

        catch (Exception ex)

        {

            ErrHandler.WriteError("Class:" + this.ToString() + " Method : " + System.Reflection.MethodBase.GetCurrentMethod().Name + "Error MSG :" + ex.Message);

        }

it is not giving correct output