Just changing the page order should have no impact on other files sharing the PDF. If you modify the PDF, then that's true that you are going to impact any other song that shares the same file. There really is no way around that except to allow the new PDF to be saved as a different name which would update the song to use the file with the new name. If you'd like me to add support for that, I can certainly do that. I can add a "Rename and save as new PDF" type option for this (I could go back to just using "Save as New PDF" for this option).
I also plan on adding an option for the CSV import to allow individual PDFs to be extracted from the original PDF so that every song is not sharing the same file. This can increase the amount of storage required, but it's probably not a significant difference to having the one larger file, especially if you don't use all of the pages from the larger file.
Mike
I also plan on adding an option for the CSV import to allow individual PDFs to be extracted from the original PDF so that every song is not sharing the same file. This can increase the amount of storage required, but it's probably not a significant difference to having the one larger file, especially if you don't use all of the pages from the larger file.
Mike