Hi everyone. I am running a 27” Mac up to date. And being a retired railroader out of Spokane wa. I run an open based train simulator called Trainz. I like creating rail routes historically correct. I am doing the Great Northern Railroad over Stevens Pass from Cashmere to Monroe in 3 Phases, 1893 to 1900 (the switchbacks over), 1900 to 1929 (the first 2.63 tunnel) and 1929 to present times (7.8 tunnel). I have the original profiles for over the pass. But they are 14 PDF files. My trouble is I am not to computer wise and I need a program I can manipulate the 14 PDFs around so they are all connected into one. I like the PDFs because no matter how much I zoom in or out the clarity as always there. I had a photo program I used to stitch photos together that I maneuvered each photo around to create a panoramic photo. I am looking for something like that. Thanks teqmter