It's (sortof) me.
I was using FoxitReader to view saved PDF files, because FoxitReader is nowhere near as bloated as Adobe reader is. (come on Adobe, why is the Adobe Reader a 35 Mbyte download package ?)
Seems that FoxitReader is enforcing the "Printing Allowed : None" setting in the ASA ERSA PDFs.
Ah well., I'll use Sumatra PDF or GSView from now on.