支持自己附加标签的PDF阅读器,现在网上下载的大多数PDF是没有标签的,阅读起来很不方面,所以我自己写了个程序有标签导航的程序!可以一次性导入目录.-support their labeling PDF reader, Now the majority of online download PDF is not labeled, reading together very, Therefore, I wrote a procedure labeled navigation procedures.