how to send mail in pdf format in netsuite using script code example

Example: how to send mail in pdf format in netsuite using script

function execute(context) {

            var pdf1 = 483;
            var pdf2 = 484; 

            var pdffile2 = file.load({id:pdf2});

            email.send({
                author: 343,
                recipients: ['[email protected]'],
                subject: 'Test Email with Attachements',
                body: 'email body',
                attachments: [pdffile2]
            });

            /** END SEND EMAIL WITH MULTIPLE ATTACHEMENTS **/
        }

        function attachfile(recType, recId, recTypeTo, recIdTo) {
            record.attach({
                record: {
                    type: recType,
                    id: recId
                },
                to: {
                    type: recTypeTo,
                    id: recIdTo
                }
            });
        }