print spreadsheet as pdf with no margins - google-apps-script

Question

I am trying to make things easier for my team so I want to have them print out a given area from my Google Sheets document into a pdf with predefined margins/printing settings. The printed area is not on the active spreadsheet.
I just moved over from Excel to Spreadsheets. I know some VBA but do not really know that much about GAS. I did quite a lot of research but all the samples I found are based on UiApp which not supported any longer.
I found some threads (where I think messages are missing?):
https://plus.google.com/u/1/115432608459317672860/posts/DQTbozyTsKk?cfem=1&pageId=none
Google Apps Script print sheet with margins
The last one I found was this one (PDF margins - Google Script) where I added the settings for margins (does it work that way though? I could not try it out yet because I do not know how to download the pdf. I tried do research but couldn't find anything..
var report = SpreadsheetApp.getActive();
var pdfName = "Angebot";
var sheetName = "Angebot";
var sourceSheet = report.getSheetByName(sheetName);
SpreadsheetApp.getActiveSpreadsheet().toast('Creating the PDF');
// export url
var url = 'https://docs.google.com/spreadsheets/d/'+report.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=true' // 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
+ '&top_margin=0'
+ '&left_margin=0'
+ '&right_margin=0'
+ '&bottom_margin=0'
var token = ScriptApp.getOAuthToken();
// request export url
var response = UrlFetchApp.fetch(url, {
headers: {
'Authorization': 'Bearer ' + token
}
});
var theBlob = response.getBlob().setName(pdfName+'.pdf');
//var attach = {fileName:'Monthly Report.pdf',content:pdf, mimeType:'application/pdf'};
var name = report.getRange("H1:H1").getValues(); // Get Name
var emailTo = report.getRange("H2:H2").getValues(); // Get email
var period = report.getRange("H3:H3").getValues(); // Get Reporting Period
var subject = " - TEST Monthly Report - " + period; // Construct the Subject Line
var message = "Hi " + name + ", here is your latest report for " + period; // email body text
// download pdf
}