I Google it
Thank you very much to have indicated me this site.
I am going to have to translate (with translator) being a French-speaking of Quebec
, it will be a little bit difficult, but I am very interested to follow the information given to remove the DRM with Calibre.
Why I want to remove the DRM? Because I borrow epub of a library and this epub has DRM as I am not capable of reading them on my reader, it was necessary to me to find a solution.
I am going to make tests and return saying to you if it worked.