[kenoph]

Just FYI: draw.io uses SVG foreignObjects for styling the text in the diagrams. That means that to get a proper rendering of the resulting SVG you need to look at it in a browser. If not, it has a fallback text element, but you lose the styling. I lost many hours due to this :/ other than that, I like it a lot

[Gehinnn]

Sadly, this is a known problem. Theoretically, you can use Chrome headless to render such SVGs into PDFs.