xlsx中的形状:
生成pdf后的样子为:
//创建一个Workbook实例并加载Excel文件
Workbook workbook = new Workbook();
workbook.loadFromFile("d:/sample1.xlsx");
workbook.getConverterSetting().setSheetFitToPage(true);
workbook.saveToFile("d:/ExcelToPdf.pdf" );