Apps Script PDF Export & Email

pdfExport.js

    var spreadsheetId = "SPREADSHEET_ID",
        sheetID = "SHEET_ID",
        respondentEmail = "RESPONDENT_EMAIL";

    var response = UrlFetchApp.fetch(
      "https://docs.google.com/spreadsheets/d/" + spreadsheetId + "/export?" +
      "format=pdf" +
      "&size=2" +
      "&fzr=true" + 
      "&portrait=false" + // you can change this to true for portrait mode
      "&fitw=true" +
      "&gid=" + sheetID +
      "&gridlines=false" +
      "&printtitle=false" +
      "&sheetnames=false" + 
      "&attachment=true"  
    );

    var pdf = response.getAs('application/pdf');
    pdf.setName("your_file_name.pdf");  
    
    MailApp.sendEmail(
      {
        "to":respondentEmail,
        "subject":"Subject text",
        "htmlBody":"Body text",
        "attachments":[pdf]
      }
    );