I have googled this extensively, but not had any luck. I have a large selection of .pdf files, some of which default to displaying discrete pages or facing pages, and some of which default to displaying continuous pages. I would like a Linux CLI tool that can batch process my PDF files, leaving them unchanged except for the information on how I'd like them to display by default.
And to disarm some obvious suggestions, NO my pdf viewer does NOT have an option to set the default output on viewing. It always does what the PDF has encoded, and I have to change modes manually. Besides, I want to change the PDFs, not my viewer.