code: public void addPage(Rectangle rect, int rotation) {
      	PdfRectangle mediabox = new PdfRectangle(rect, rotation);
      	PageResources resources = new PageResources();
      	PdfPage page = new PdfPage(mediabox, new HashMap(), resources.getResources(), 0);
      	page.put(PdfName.TABS, getTabs());
      	root.addPage(page);
      	++currentPageNumber;
      }
docs: Adds a blank page.
  @param	rect The page dimension
  @param	rotation The rotation angle in degrees
  @since	2.1.5