Hello @Hegedus -- I often on the Mac will use the Selection tool (shortcut key S), grab the graph that I want to output as a high-quality image and then open Apple Preview. Since the graph is already on the clipboard you can File > New from Clipboard or just CMD-N. This will create a vector PDF, which can then be dragged into your PPT slide.
I'd be curious to know if you still get the same distortion/skewing that you are seeing in PPT with the JMP -> Preview -> PPT graphical output workflow.
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