Hi, is there a way to get the correct shadow from such an image, without trimming it?
No, there isn’t in SketchUp. Rendering applications and plugins generally can create the shadow correctly.
You can use an extension to auto-trim around the image: https://sketchucation.com/pluginstore?pln=SKMtools
Here’s a video that explains the process: https://www.youtube.com/watch?v=cK9zZtg02NI I’ve used it. Takes a minute to learn but if you’re going to do this more than once, this is a good way to do it.
I think this would be better than loading a Java app that depends on Java installation…