I’d like to buy a French comic I can’t find online from any store that sells French Bande dessinée (Amazon, fnac or anything else) and then ask for a refund so I can keep a nice *.cbz or *.cbr file on my hard drive.

Any guide out there on how to properly de-DRM comics? I’d like something easy if possible I’m tech and computer savvy enough but not “coding” savvy