var pdf = new jsPDF('p', 'pt', 'letter');
    pdf.addFileToVFS('CustomFont.tff', 'base64 of .tff file');
    pdf.addFont('CustomFont.tff', 'CustomFont', 'normal');
    pdf.setFont('CustomFont');
    var source = $('#pdf')[0];
    var margins = {
        top: 50,
        bottom: 60,
        left: 40,
        width: 520
    };
    pdf.fromHTML(
        source,
        margins.left,
        margins.top, {
            'width': margins.width,
            'elementHandlers': specialElementHandlers
        },
        function (dispose) {
            pdf.save('Test.pdf');
        }, margins);