These reference links may help you to have some hints on how you will achieve your target:
This first link shows you how to download a range of cell as PDF:
Script to download a range of cells in google sheet as PDF to local computer and other automation scripts?
Script that exports a range to PDF without borders in reference to the first link and answered by ZektorH:
function downloadRangeToPdf() {
var sheet = SpreadsheetApp.getActiveSheet();
var range = sheet.getRange("A1:E20");
//Create temporary Spreadsheet
var tempSpreadsheet = SpreadsheetApp.create("tempSheetInvoiceExport", range.getValues().length, range.getValues()[0].length);
var tempSheet = tempSpreadsheet.getSheets()[0];
var tempRange = tempSheet.getRange("A1:E20");
tempRange.setValues(range.getDisplayValues());
tempRange.setTextStyles(range.getTextStyles());
tempRange.setBackgrounds(range.getBackgrounds());
tempRange.setFontColors(range.getFontColors());
tempRange.setFontFamilies(range.getFontFamilies());
tempRange.setFontLines(range.getFontLines());
tempRange.setFontStyles(range.getFontStyles());
tempRange.setFontWeights(range.getFontWeights());
tempRange.setHorizontalAlignments(range.getHorizontalAlignments());
tempRange.setNumberFormats(range.getNumberFormats());
tempRange.setTextDirections(range.getTextDirections());
tempRange.setTextRotations(range.getTextRotations());
tempRange.setVerticalAlignments(range.getVerticalAlignments());
tempRange.setWrapStrategies(range.getWrapStrategies());
SpreadsheetApp.flush(); //Force changes to be written before proceeding.
//Generate Download As PDF Link
var url = 'https://docs.google.com/spreadsheets/d/{ID}/export?'.replace('{ID}', tempSpreadsheet.getId());
var exportOptions = 'exportFormat=pdf&format=pdf' + // export as pdf / csv / xls / xlsx
'&size=letter' + // paper size legal / letter / A4
'&portrait=true' + // orientation, false for landscape
'&fitw=true&source=labnol' + // 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
'&top_margin=0.00' + //All four margins must be set!
'&bottom_margin=0.00' + //All four margins must be set!
'&left_margin=0.00' + //All four margins must be set!
'&right_margin=0.00' + //All four margins must be set!
'&gridlines=false' + //true/false
'&gid=' + tempSheet.getSheetId(); // the sheet's Id
var token = ScriptApp.getOAuthToken();
var blob = UrlFetchApp.fetch(url + exportOptions, {
headers: {
Authorization: 'Bearer '+token
}
}).getBlob().setName(tempSpreadsheet.getName()+".pdf");
var pdfFile = DriveApp.createFile(blob);
var downloadLink = HtmlService
.createHtmlOutput('<p>Download your file <a href="' + pdfFile.getUrl() + '" target="_blank">here</a>.</p>')
.setWidth(200)
.setHeight(100);
SpreadsheetApp.getUi().showModalDialog(downloadLink, "Download PDF");
DriveApp.getFileById(tempSpreadsheet.getId()).setTrashed(true); //Place temporary sheet on trash
}
Then this second link shows you how to download a spreadsheet as PDF to local computer. You can refer best to Tanaike's answer here:
How to download single sheet as PDF (not export to Google Drive)
EDITED (Answer to your question below):
You need to use the sheetID of the second sheet in order to save the PDF for the second sheet.
You should change
FROM:
var sheetId = SpreadsheetApp.getActiveSheet().getSheetId();
TO:
var sheetId = ss.getSheetId();
Because you get the reference of the second spreadsheet by the following logic:
var ss = SpreadsheetApp.getActiveSpreadsheet().getSheets()[1];
So, you just need to use the following code to get the sheet id of the second spreadsheet:
var sheetId = ss.getSheetId();
For your original logic, which is var sheetId = SpreadsheetApp.getActiveSheet().getSheetId(); it will only get the sheetId of the first sheet.