Thread: Content Amazon Watermarking eBooks?
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Old 05-05-2019, 02:41 PM   #18
DNSB
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Quote:
Originally Posted by lumpynose View Post
So if someone wanted to remove that, then they could open the opf file in calibre's editor and delete it?
I used KindleUnpack to unpack the azw3 files and then looked at the content.opf in the OEBPS directory to find the watermark entry. KindleUnpack gives me the ebook contents in 3 directories with the majority of the data in a mobi8 directory. The mobi8 directory for the 5 books I unpacked contains META-INF and OEBPS directories, an epub file and a mimetype file. The epub file does not contain the same infomation in content.opf as the content.opf in the OEBPS directory but it does match the information shown for content.opf by calibre.

Quote:
Originally Posted by lumpynose View Post
And I repeat my question about calibre's conversion to PDF. Does Dyxan's PDF show his email because calibre extracted it from that string? I don't find that easy to believe. I still think his information was in the AZW3 unencrypted and plain text and he didn't notice it, e.g., it was on page 1 or something (I'm thinking of the thread here about how the book cover isn't displayed when it's on page 1).
Again, my suspicion is that those ebooks were either not downloaded from Amazon or the watermark was present before the ebooks were submitted to Amazon. As in the ebook my wife downloaded from Entangled.

I do have one ebook that I downloaded as a freebie from the author and the metadata says "This book was given to Name Withheld (12345678) but that is in the content.opf file wrapped in a dc:description tag.

Last edited by DNSB; 05-05-2019 at 02:44 PM.
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