"As an aside, how does Ghostscript handle if the original pages aren't letter?" I have no idea. Most of the PDFs I deal with happen to be letter. I found that

"As an aside, how does Ghostscript handle if the original pages aren't letter?" I have no idea. Most of the PDFs I deal with happen to be letter. I found that command a few years ago and haven't bothered to investigate further, since it suits my purposes most of the time. "I'm wondering if a command like this isn't doing more than it needs to." I wouldn't be at all surprised.