Yes, you are correct.
Acrobat X relocated it. Saw that the other day when looking for Acrobat's "page setup".
The laptop with Acrobat X isn't with me just now so I cannot point you to the specific location.
While viewing the dialog (you screen capture) click "Page Setup", "Properties", "Advanced".
It is in one of the dialogs associated with these.
Similarly, the pre-Acrobat X File -- Page Setup was relocated to the dialog that contains the print to file choice.
Be well...