A name object specifying the page layout to be used when the document is opened.
// Create a new PDF document
let document : PdfDocument = new PdfDocument();
// Gets the viewer preferences of the document
let viewerPreferences : PdfViewerPreferences = document.viewerPreferences;
// Sets the page layout
viewerPreferences.pageLayout = PdfPageLayout.TwoColumnLeft;
// Destroy the document
document.destroy();OneColumn - Display the pages in one column.SinglePage - Default Value. Display one page at a time.TwoColumnLeft - Display the pages in two columns, with odd numbered
pages on the left.TwoColumnRight - Display the pages in two columns, with odd numbered
pages on the right.TwoPageLeft - Display the pages two at a time, with odd-numbered pages on the left.TwoPageRight - Display the pages two at a time, with odd-numbered pages on the right.