ComiXology starts offering DRM-free backups of its digital comics

Digital comics platform comiXology, which was acquired by Amazon(s AMZN) in April, announced Thursday at Comic Con that it will let users download DRM-free backups of titles from participating publishers, so that they can store and read them offline.
After purchase, eligible comics can be downloaded as PDF or CBZ (a compressed format for comic books) files. ComiXology’s DRM-free store is here. The leading comic book publishers, Marvel and DC, aren’t making their titles available DRM-free. But smaller publishers — including Image Comics, Dynamite Entertainment and MonkeyBrain Comics — are participating. Authors who use comiXology’s self-publishing platform, comiXology Submit, can also choose to make their titles available DRM-free.
“For those out there who have not joined the comic reading community because of DRM — you have no excuse now,” John D. Roberts, comiXology co-founder and director of comiXology Submit, said.