Hello Everyone!

I recently got my college textbook in .pdf format. It came in files that were by chapter, so I have 20 files instead of one file for the whole book. That is great if you are reading them on a computer, but not so much if you read them on a nook. So here is my problem. I uploaded them to my nook by copying and pasting them into the my documents under the nook folder in windows explorer. The files kept their original names, but when I looked into my nook, it had given them completely different filenames and they are all the same names so I cannot tell which file is which chapter. I not know how to fix this since when I open up the nook in windows explorer, it shows that the file names are still the same, it is just different on the nook. Any suggestions? Thanks!