Hi Faiz,

Please use the below code to restore pdf file from binary data.

string strExtenstion = “.pdf”;
byte[] bytFile =  GetBinaryDataFromDataBase();// “Byte array retrieved from database”;

Response.Clear();
Response.Buffer = true;
Response.ContentType = “application/pdf”;
Response.AddHeader(“content-disposition”,“attachment;filename=Tr.pdf”);
                
Response.Charset = “”;
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.BinaryWrite(bytFile);
Response.End();

Hope this will help.