Google Sheets Sauvegarde PDF mais avec nom de cell

function buttonprtPDF() {
/////////////////////////Active la feuille PRINT
  var spreadsheet = SpreadsheetApp.getActive();
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('Print'), true);
//////////////////Renomme classeur par numéro de facture pour nom de sauvegarde
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var a1 = ss.getRange("i11").getValue();
  var name = a1+" ";
  ss.rename(name);
///////////////Rename la feuille pour nom de sauvegarde
  var spreadsheet = SpreadsheetApp.getActiveSpreadsheet(); // Get Active spreadsheet object
  var sh = spreadsheet.getActiveSheet(); // Get Active sheet's object
  sh.setName("Facture/Invoice");
//////////////Prepare le save as
  var ss = SpreadsheetApp.getActiveSpreadsheet()
  var sprsheetid = "ss.getId()";
  var sheetid = ss.getSheetId();
  var ssa = SpreadsheetApp.getActive();
  var sheet = ssa.getSheets()[0]; //Query Sheet
  var lastRow = sheet.getLastRow();
  var lastColumn = sheet.getLastColumn();
  var printRange = '&c1=0' + '&r1=0' + '&c2='+9  + '&r2='+45; // B2:APn
////////////////Setting du PDF. Voir notes et bas de ce module
  var url= ss.getUrl().replace(/edit$/, '') +
  "export?exportFormat=pdf&" +
  "format=pdf&"+
  "fmcmd=12&"+
  "size=0&"+
  "fzr=true&"+
  "gid="+sheetid+"&"+
  "sheetnames=false&"+
  "pagenum=UNDEFINED&"+
  "gridlines=false&"+
  "portrait=true&"+
  "scale=2&"+
  "fitw=true&"+
  "horizontal_alignment=CENTER&"+
  "top_margin=0.60&"+
  "bottom_margin=0.10&"+
  "left_margin=0.20&"+
  "right_margin=0.20&"+
  "attachment=true&"+ printRange;
  var html = "<script>window.open('" + url + "');google.script.host.close();</script>";
  var userInterface = HtmlService.createHtmlOutput(html)
  .setHeight(10)
  .setWidth(100);
  SpreadsheetApp.getUi().showModalDialog(userInterface, 'Downloading PDF ... ');
///Attend et renomme le classeur par 2021
    Utilities.sleep(8000);
//////////////Rename Sheet
  var spreadsheet = SpreadsheetApp.getActiveSpreadsheet(); // Get Active spreadsheet object
  var sh = spreadsheet.getActiveSheet(); // Get Active sheet's object
  sh.setName("Print");
//////////////////Rename Classeur
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var name = ss.getRange("i9").getValue();
  ss.rename(name);
///////////////Selectionne la feuille Facture
  var spreadsheet = SpreadsheetApp.getActive();
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('Factures/Dépenses'), true);
}

/////////NOTES pour save as PDF
//All requests must include id in the path and a format parameter
  //"https://docs.google.com/spreadsheets/d/"+sprsheetid+"/export?"
  //FORMATS WITH NO ADDITIONAL OPTIONS
  //format=xlsx       //excel
  //format=ods        //Open Document Spreadsheet
  //format=zip        //html zipped        
  //CSV,TSV OPTIONS***********
  //format=csv        // comma seperated values
  //             tsv        // tab seperated values
  //gid=sheetId             // the sheetID you want to export, The first sheet will be 0. others will have a uniqe ID
  // PDF OPTIONS****************
  //format=pdf   
  //size=0,1,2..10             paper size. 0=letter, 1=tabloid, 2=Legal, 3=statement, 4=executive, 5=folio, 6=A3, 7=A4, 8=A5, 9=B4, 10=B5
  //fzr=true/false             repeat row headers
  //portrait=true/false        false =  landscape
  //fitw=true/false            fit window or actual size
  //gridlines=true/false
  //printtitle=true/false
  //pagenum=CENTER/UNDEFINED      CENTER = show page numbers / UNDEFINED = do not show
  //attachment = true/false      dunno? Leave this as true
  //gid=sheetId                 Sheet Id if you want a specific sheet. The first sheet will be 0. others will have a uniqe ID.
                               // Leave this off for all sheets.
  // EXPORT RANGE OPTIONS FOR PDF
  //need all the below to export a range
  //gid=sheetId                must be included. The first sheet will be 0. others will have a uniqe ID
  //ir=false                   seems to be always false
  //ic=false                   same as ir
  //r1=Start Row number - 1        row 1 would be 0 , row 15 wold be 14
  //c1=Start Column number - 1     column 1 would be 0, column 8 would be 7 
  //r2=End Row number
  //c2=End Column number
}