Please add the possibility of exporting vector based images as they do not lose any image quality. With PNGs, you lose image quality every time you save it in a PowerPoint file. Although the workaround is to turn off compression, it increases the file size.
Thank you for the idea! Given the low volume of support for this idea, we do not have plans to make updates in this area at this time.
You should check this API that can be used to generate PPT files
http://www.aspose.com/products/slides/java