Yes, you're correct, that was a bad call.
Instead it should have been closed as a dupe of Looking for software to facilitate printing of online content.
But then that one does mention wanting web-based software.
Flip switch
Dupe has been swapped and the annotation left as:
Dupe close because while the newer one is of extremely similar premise, it does not cover just web-based software, which is outside the scope of SU.