Can width/height of a powerpoint presentation be calculated on iPad
问题 I have an ipad app, which displays a powerpoint presentation from an NSData, within a UIWebView, and I need to know the width/height of a single slide so I know how far to scroll when advancing to the next slide. In PDF, I can calculate it using CGPDFDocumentRef, as below, but I can't find a corresponding API for powerpoint, and since it's a microsoft format, I doubt it even exists. I can use javascript to determine the width/height of the ENTIRE presentation, but that doesn't help me know