在不使用微软提供的API的情况下，用C/C++将ppt转换成html，且能够实现对ppt里面的图片进行提取保存，，，
天蓬老师2017-04-17 11:31:37
The pptx file in the new version of Office is just a bunch of materials packed into a zip package. Once you unzip it, you can see what's inside.
For more complex applications, you can look at the OpenOffice SDK, which has relatively complete parsing functions for various Office files.
ringa_lee2017-04-17 11:31:37
Libreoffice or openoffice can support command line and client/server mode call conversion
An open source java library: jodconverter
