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Almost all the non-major online ebook viewers are like that. Some of them would obfuscate the image resources, but that's about it. Big players typically have
by thrdbndndn 4y ago
Almost all the non-major online ebook viewers are like that.
Some of them would obfuscate the image resources, but that's about it.
Big players typically have something "better". Bookwalker (a Japanese ebook vendor) has the most complicated viewers in my experience, and it always convert all the text to image on server side before serving. (And it obfuscates the images on server side too, so you have to reverse this process yourself if you want to download them).
- xvilka 4y ago> it always convert all the text to image on server side before serving. It probably easy to recover to absolute precision with OpenAI-like models. I bet using AI could help a lot with recovering books in the future.
- innocenat 4y agoBookWalker generally don't have exclusive rights to their books, so just buy from other place instead. On books that they do have exclusivity, though, people are doing exactly that, OCR the book and recreate the EPUB.
- thrdbndndn 4y agoPeople also have already cracked their Android client so you can straight up get EPUBs. But it's not publically available since BW is very quick about patching their app once the crack is well known.
- chocolatkey 4y agoReverse-engineering Japanese ebook DRM is much more fun than English. You run into all sorts of mistaken cryptography assumptions, fun exploits, obfuscation etc. Hint for bookwalker: check out the app