There's one way you can do i.e., import all pdf files into Indesign (if you have indesign software) by using script "PlaceMultipagePDF", to do that press Ctrl+Alt+F11 (script) and recreate PDF by press Ctrl+E (Export) and choose as a Save as type as Adobe PDF (print), while you are recreated PDF in Indesign select the radio button in pages option as Spreads, see the images for your clarity