To convert database table in sql server into pdf file using c#.net

Try to use crystal report there is a method that exports the data in the report to excel word or even pdf

You create a crsytal report file separatly that consumes data from your sql server data base then you export it to pdf using this code

//Instantiate a new report document
            ReportDocument oDoc = new ReportDocument();
            //load myCrReport
            oDoc.Load(@"C:\myCrReport.rpt");
           
            DataSet myDataSet = new DataSet();

            // write code here to fill the data set
           
            DiskFileDestinationOptions destination = new DiskFileDestinationOptions();
             destination.DiskFileName = @"C:\Content.pdf";
            // Set the data source of the report document
            oDoc.SetDataSource(myDataSet.Tables["Table"]);
            CrystalDecisions.Shared.ExportOptions option = new ExportOptions();
            option.ExportFormatType = ExportFormatType.PortableDocFormat;
            oDoc.Export(option);