PDF page size not changing using pdfkit in node js

Question

I am using pdfkit module to create pdf documents in node js. I could not change the page size of pdf document. i tried the following code.. Even its not working.

var PDFDocument = require('pdfkit');
var doc = new PDFDocument;
doc.addPage
  size: 'legal'
  layout: 'landscape'

doc.addPage
  size: [612.00  * 1008.00]
  layout: 'landscape'

Please suggest some idea for this problem..

Answer 1

doc.addPage({
    size: 'LEGAL'
    layout: 'landscape'
});

Above code worked for me.