JavaScript/jQuery Diagram - pageSize

$(function() {
    $("#diagram").dxDiagram({
        units: "cm",
        pageSize: {
            width: 10,
            height: 10,
        },
    });
});

$(function() {
    $("#diagram").dxDiagram({
        viewUnits: "cm",
        units: "cm",
        pageSize: {
            width: 21,
            height: 29.7,
            items: [
                { text: "A4", width: 21, height: 29.7 },{ text: "A3", width: 29.7, height: 42 }
            ]
        },
    });
});