问题
I am Trying to track openings of Powerpoint Documents (ppt \ pptx). i'm looking for a way to make the ppt make some kind of a HTTP GET request for an image of a css file, making t possible to track those requests. is there any way i could make the powerpoint client make an internet request on openeing of a ppt \ pptx object?
also - same question for PDF files (if i am supposed to post a different question, let me know)
(there are ways to make this thing with doc and xls)
** Hope this one is not off topic.
来源：https://stackoverflow.com/questions/20679171/make-a-powerpoint-pdf-to-call-back-home