jspdf how can i delete file after save?

i use this code to genarate pdf file after the last line : pdf.save(datetime + "_pdf.pdf");

where it saves the file

is this file will be deletes after sent to the browser or i have to delete it my self

if i let every one generate pdf without delete this will effect the disk size

html2canvas(document.querySelector("#capture"),{
  allowTaint: true,
}).then(canvas => {

    var resizeCanvas = canvas.getContext('2d');
    resizeCanvas.height = "209";
    resizeCanvas.width = "296";

    var imgData = canvas.toDataURL("image/jpeg",1.0);
    // var pdf = new jsPDF();
    var pdf = new jsPDF({
      orientation: "landscape"
    });
    pdf.addImage(imgData, 'JPEG', 0, 0, 296, 209);

    var currentdate = new Date();
    var datetime = "certificate_" + currentdate.getDate() + "_"
                + (currentdate.getMonth()+1)  + "_"
                + currentdate.getFullYear() + "_"
                + currentdate.getHours() + "_"  
                + currentdate.getMinutes() + "_"
                + currentdate.getSeconds();

    pdf.save(datetime + "_pdf.pdf");

});