2. 代码

	QFile pdfFile("./tmp.pdf");
    pdfFile.open(QIODevice::WriteOnly);

	QPdfWriter *pPdfWriter = new QPdfWriter(&pdfFile);
    pPdfWriter->setResolution(300);
    pPdfWriter->setPageSize(QPageSize(QPageSize::A4));
    pPdfWriter->setPageMargins(QMarginsF(30, 30, 30, 30));
	
	//绘制第一页
	...

	//新建页面, 第二页
	pPdfWriter->newPage();

	//绘制第二页
	...