宏代码求助：如何在电子报表中，通过点击按钮将指定区域导出为...

各位大佬，目前在用V10做一张对账单的电子报表。客户要求：报表上放一个“导出PDF”的按钮，点击后只把A1到F20这个区域（不带表头和外框）导出成PDF下载。
我看了官方的宏代码文档，只找到了导出整个工作簿的API，没找到指定区域导出的方法。有没有写过类似宏事件的大佬？求一段能用的JS宏代码，感激不尽！

谢谢
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