我可以在生成PDF时设置自定义页面和边距吗？我试过但没有运气的应用程序脚本

Question

我正在开展一个项目，我希望生成尺寸为52毫米x 25毫米的PDF。我使用以下代码生成pdf，除页面大小外，工作正常。

    function CreaPDF() {
  //The function prints an invoice to PDF. First it copies spreadsheet to a new document.
  //Deletes all sheet except the one to print. Saves it to PDF. 
  //It overwrites any existing doc with same name.

  var sourceSpreadsheet = SpreadsheetApp.getActive();          
  var sheetName = "Factura";
  var folderID = getParentFolder(); // Folder id to save in a folder.
  var sourceSheet = sourceSpreadsheet.getSheetByName(sheetName);
  var folder = DriveApp.getFolderById(folderID); 
  var numf = sourceSpreadsheet.getRangeByName("NumeroFactura").getValue();
  var anof = numf.split("/",2);   // Seeks number and year -> filename 

  var pdfName = anof[1] +"_Factura_" + anof[0]+ "_Dra_Salazar"; // Nombre del documento;

  SpreadsheetApp.getActiveSpreadsheet().toast('Creando PDF');

  // export url
  var url = 'https://docs.google.com/spreadsheets/d/'+sourceSpreadsheet.getId()+'/export?exportFormat=pdf&format=pdf' // export as pdf / csv / xls / xlsx
  + '&size=A4'                           // paper size legal / letter / A4
  + '&portrait=true'                     // orientation, false for landscape
  + '&fitw=false'                        // fit to page width, false for actual size
  + '&sheetnames=false&printtitle=false' // hide optional headers and footers
  + '&pagenumbers=false&gridlines=false' // hide page numbers and gridlines
  + '&fzr=false'                         // do not repeat row headers (frozen rows) on each page
  + '&gid='+sourceSheet.getSheetId();    // the sheet's Id

  var token = ScriptApp.getOAuthToken();

  // request export url
  var response = UrlFetchApp.fetch(url, {
    headers: {
      'Authorization': 'Bearer ' +  token
    }
  });

  var theBlob = response.getBlob().setName(pdfName+'.pdf');

  // delete pdf if already exists
  var files = folder.getFilesByName(pdfName);
  while (files.hasNext())
  {
    files.next().setTrashed(true);
  }

  // create pdf
  var newFile = folder.createFile(theBlob);

  return true;
}

我想要的是在链接和自定义边距中设置自定义页面大小。我想将此pdf自动发送到Dymo Label打印。

对此有任何帮助将受到高度赞赏。非常感谢你。