I know that I can convert an entire slide to an image with
ISlide.GetThumbnail as well as a single shape with
IShape.GetThumbnail. Now what I would like to do is converting a set of shapes to an image. Can anyone suggest the best way to do this?
One idea that I had was grouping the relevant shapes into one shape. But I know that PowerPoint won’t allow grouping placeholder shapes. Therefore I suspect Aspose will run into issues with this approach too.
Another option would be copying the shapes to an empty slide or emptying the slide (i.e. delete other shapes, reset background, clear layout page) and then export the entire slide. A limitation would be that the background won’t be transparent but white.
Maybe there’s a better way that I missed?