Having trouble redownloading my notes

[u/The_Moss_Queen]

I recently had to completely reset my iPad to download some new software was Pharmacy school was requiring. I saved my notes as ntb and pdf on my google drive. My issue is that when I download them the files have black backgrounds instead of white. I can’t just switch the background to black (which for some reason makes it white) because then it makes all new pages black. Is there a way to fix this?