Aka “karate chopping the Plausible Deniability right in the throat”

They probably didn’t have rulers. Or compasses. It was such an early era that geometry wasn’t invented yet.

And Calibre, a third party software for managing ebooks, has a plugin to crack Kindle files.

Unfortunately currently broken for the latest version of Kindle for PC, which switched to a different encryption scheme. It also uses KFX file format that nobody likes, which fortunately can be converted to EPUB with another plugin, but de-DRMing doesn’t seem to work right now. It still seems to work for titles in AZW3/MOBI that didn’t get DRM update or didn’t have DRM in the first place.

Well, duh, where else would a pro-Hitler, Holocaust-denying ad be?