Wouldn’t it just be easier to find the files in the correct format in the first place? It should be in the epub format, or I would assume so. I think you may be able to use PDF apps to create epub files.
Can you even import files into the app? I feel like the kindle app has an option to do imports, but I don’t like reading on my phone personally.
Shadow, it sounds like you just need to extract the .Rar file( I use WinRAR) on your computer, then drag that folder with all of your jpeg images into your phone. At least thats what I’m thinking from the way you worded it.
renaming the file physically dosn’t change what type of file it is. you have to do a conversion. otherwise the file will be corrupted and unusable… at least that is how i was taught.
It would not corrupt it, it would just have no idea how to read it. If it can’t read the jpegs themselves… then no type of compressing should help.
I use CDisplay on my PC for manga reading. I have no idea how they would work on portable devices. Can’t really help ya there. I am, however, interested in the files you are trying to read. I wanna read em too!