问题
Is there any way to use the OpenXML library to automatically create a thumbnail image for a PPTX file? I am building a small C# ASP.NET web application that is used to build PPTX files from a library of PPTX files. One of the requirements is to show a thumbnail image for each PPTX file in the library. I would like to automate this as the people that will be using the system don't know how to create screen shots.
回答1:
Pptx file already have it, unziping the file you can find id. ;)
回答2:
There's a commercial library available that can generate thumbnails of slides in presentations. So at least you know it's possible: http://www.aspose.com/docs/display/slidesnet/Creating+Slides+Thumbnail+Image
来源：https://stackoverflow.com/questions/11146072/how-to-generate-thumbnail-image-for-a-pptx-file-in-c