Needing users to view PDF version of the Google Sheet they have just saved to Google Drive via the function below. How do I add in a view PDF function within this code? Online suggestions are not working entirely.
function checkSheet() {
  var sheetName = "POTemplate";
  var folderID = "Eric";
  var sourceSpreadsheet = SpreadsheetApp.getActive();
  var sourceSheet = sourceSpreadsheet.getSheetByName(sheetName);
  var poNo = sourceSheet.getRange("b2").getValue();
  var pdfName = "Sample PO Hi Eric - Happy Valentine's" + poNo;
  var folder = DriveApp.getFoldersByName(folderID);
  var destSpreadsheet = SpreadsheetApp.open(DriveApp.getFileById(sourceSpreadsheet.getId()).makeCopy(folder));
  var sheets = destSpreadsheet.getSheets();
  for (i = 0; i < sheets.length; i++) {
   if (sheets[i].getSheetName() != sheetName){
     destSpreadsheet.deleteSheet(sheets[i])}};                                                                                               
  var theBlob = 
destSpreadsheet.getBlob().getAs('application/pdf').setName(pdfName);
  var newFile = folder.next().createFile(theBlob);
  DriveApp.getFileById(destSpreadsheet.getId()).setTrashed(true);
}
 
    