HowTo organize PDF library
Hello,
for my studies I have some 9000 books and papers as PDFs organized neatly on my PCs. Now I would like to carry around the iPad Air 2 I just bought instead of one of my notebooks to university. How do I manage to get the PDFs to the iPad without losing the information provided by the folder structure (maths folder, computer science folder, 100+ sub folders for the fields...)?
I thought I should be able to simply copy the literature folder with all its sub folders as I do in both Windows and Linux or download it via FTP but does not seem that easy?
thx for any help in advance