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10-30-2017, 02:14 PM | #47 |
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02-27-2019, 12:30 PM | #48 |
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This thread is quite old, but I can not find the answer to the initial question anywhere.
There is something new that can be added to this question? |
02-27-2019, 01:25 PM | #49 |
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I don't believe that anything significant has changed since this thread was last active.
As far as I know the commonly used DRM removal tools do not make any attempt to remove anything other than the actual DRM. Whether or not e-books contain personally identifiable information is a separate question that applies whether or not DRM is involved. It is safest to honor copyright. |
02-28-2019, 09:59 AM | #50 | |
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Quote:
You say: "Whether or not e-books contain personally identifiable information is a separate question" This is what I'm asking for: someone can say if personal information are stored in a purchased epub or not? Can someone what and where this information are? |
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02-28-2019, 10:02 AM | #51 |
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Why does it matter? The DRM removal tools are very specifically for removing DRM from books that you've bought yourself, for your own personal use. It would seem entirely irrelevant whether or not they contain information that identifies you.
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02-28-2019, 10:06 AM | #52 |
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02-28-2019, 10:36 AM | #53 | |
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Is this what you wanted to hear? Greg |
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02-28-2019, 10:46 AM | #54 |
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As Harry said: those who don't intend to violate copyright have little to fear by personal info being in your purchased books (cue the "what if my ereader gets stolen and all my liberated books get uploaded?" scenarios). Just assume they can be tied to you and act accordingly.
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02-28-2019, 11:43 AM | #55 |
Nameless Being
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This. Exactly.
Assume that EVERYTHING you use of the large software companies including Amazon, if it has web access, is aware of you and that your activity can be tied to you if they really want to. That includes your operating system, web pages you visit, emails and texts you send, all apps you use on phone/pc/mac, and artifacts you download like ebooks. Every. Thing. There are a few ways to be COMPLETELY anonymous and stay online--but it's much much harder than one would think. And for most of us, it's impossible, it's too much hassle even if you try to do all the things you'd need to do. I tried a 6-month experiment being completely 'anonymous', and it was sheer hell all the additional hoops I had to jump through. The linked article gives a pretty good overview. The actions to take are not complicated though. It's the stuff you learned from your parents when you were 5 years old: (1) Don't steal other people's stuff, including ebooks, and (2) Keep your front door locked when you leave the house (and keep your ebooks secure). Then you have nothing to worry about, and 99.9999% of us are not going to have a problem. And if you REALLY want to be 100% sure--don't DeDRM your books at all. Lock yourself in with one of the big ebook providers like Amazon or Google or Kobo, and use only DRM'd books from their store. |
03-01-2019, 02:24 AM | #56 | |
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As far as I am aware, no big sellers of DRMed epubs are embedding secret identifying info into books. Yet. We will never be able to tell for sure. Unless you compare files purchased by different people from the same publisher. After removing DRM, of course. Because DRM protected files have to be different for different customers. What if they started yesterday? It doesn't have to be something obvious or visible. It might be stenographically hidden in a cover image, it might be a difference of a few spaces or newlines or use of lowercase/uppercase letters inside the xhtml tags in epub markup. You could even encode info inside a book plain-text by using a few extra spaces before newlines, or a combination of different versions of typographical quotes or use of ligatures, so it might even survive a format conversion to a plain text. They do not even need to start to embed the info. Just change a few pixels in a cover or a few characters in an html tag to make would-be pirates paranoid. That is what I would consider doing if I was a publisher <maniacal laugh> ;-) Mind you, I consider the above scenario unlikely. |
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03-01-2019, 10:38 AM | #57 | |
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Quote:
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03-01-2019, 10:56 AM | #58 |
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Thank you all for answers. This info is what I'm looking for.
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09-09-2020, 02:27 PM | #59 |
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And what about printing/saving to PDF??? I guess that may be one way to be sure there is no personal info left on the file.
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09-09-2020, 02:46 PM | #60 |
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There have been schemes which used extra spaces or other characters to encode the user information. At least one that used steganography to encode the user information into the images (cover, author pix, section break, etc.)
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