Creating groups of layers in Acrobat?

Report · Jun 17, 2016

I have a PDF that was exported from AutoCAD which contains 50+ separate layers. I want to optimise the navigation of the layers by grouping them based on their content. Can anyone tell me if this is possible? The Acrobat Pro DC help guide on editing PDF's states "Some layers may be organized into nested groups with a parent layer. Other layers may be in groups with no parent layer." but doesn't give any further help on the topic.