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noDRM / DeDRM_tools

DeDRM tools for ebooks
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Shueisha (Jump) comic in kobo still can't be DRM removed #487

Open kof11 opened 9 months ago

kof11 commented 9 months ago

Question / bug report

I'm pretty sure this is an old question, I asked it last year and it's still unresolved. https://i.imgur.com/4LxoG02.jpg Comics from other publishers can successfully remove DRM. Only Shueisha's comics have problems. https://i.imgur.com/sj84QqK.jpg There are a lot of free Shueisha comics here, please prove it's not my problem. https://books.rakuten.co.jp/event/e-book/free/?l-id=pc-genre-free_seeMore#boy

Which version of Calibre are you running?

7.4.0

Which version of the DeDRM plugin are you running?

v10.0.9

If applicable, which version of the Kindle software are you running?

No response

Log output

Paste log output here.
kof11 commented 8 months ago

Jesus, I found the solution myself, use Epubor Ultimate Converter software to successfully remove DRM. It's really solved.

ElleKayEm commented 8 months ago

Strange that DeDRM didn't work for you then since Epubor is based on the code here.

romad275 commented 8 months ago

I’ve had the same result periodically over the years. DeDRM fails but Epubor worked fine. Weird.

Sincerely, Dennis B. Swaney

Cogito Ergo Mac

On 15Feb24, at 10:00 , ElleKayEm @.***> wrote:

Strange that DeDRM didn't work for you then since Epubor is based on the code here.

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jeltaqq commented 8 months ago

I don't think DeDRM problems because I'm reading it with other viewers. It is exceptional that there is no xhtml on each pages.

js999y commented 6 months ago

@kof11 Does it still work for you on either Calibre / Epubor? I'm having the same issue where DeDRM failed with specifically Shueisha ebooks (converted to gibberish) and when attempting to open error shows There is no item named 'OPS/advanced.opf' in the archive But Epubor is also failing to convert any of the Shueisha manga - none of the files are openable / status is Failed. Both Calibre and Epubor seem to be blocked right now.

ElleKayEm commented 6 months ago

That's an issue with the book. Can you open it in other ereaders besides calibre's ebook viewer?

kof11 commented 6 months ago

@js999y

Still work for me. Here are my steps. Drag the epub that failed to be converted by Caliber into Epubor, then use Epubor to convert a mobi, then drag the mobi into Caliber, and it will be successful. I don't know why but it works for me.

js999y commented 6 months ago

Yes @ElleKayEm I can open the book in Kobo app with no issue, and confirmed i can read through the whole book with no errors. But when opening with calibre, it seems to be corrupt.

Thank you for giving the steps @kof11 , looks like it only partially works for me. Not sure if it's because the version I'm using or something, but when I try those steps, convert to mobi on Epudor and back to Calibre, half of the manga become missing. I extracted the epub and it misses a chunk in the middle (e.g. 0065.jpg - 0148.jpg missing out of 200 page book where 1 img = 1 page). Can I ask what version of Epubor / Calibre you're using?

ElleKayEm commented 6 months ago

I was referring to the copy from calibre, not the original. Just wondering because of what jeltaqq said above.

js999y commented 6 months ago

Thanks @ElleKayEm Just gave that a go. Opening the epub file downloaded from Calibre on other viewers do not work, it just show blank pages. But from unzipping epub file copied from Calibre, it looks like you're right that there are no issue with DeDRM. The only thing that seems different are file structure on unzipped epub, File structure for a book w issue loading on viewer -- ├── images │   ├── <first_page>.jpg │   ... │   └── <last_page>.jpg ├── navigation_standard.ncx ├── navigation_standard.xhtml └── standard.opf File structure for a book w/o issue loading on viewer -- ├── item │   ├── image │   │   ├── <first_page>.jpg │   ... │   │   └── <last_page>,jpg │   ├── navigation-documents.ncx │   ├── navigation-documents.xhtml │   ├── standard.opf │   ├── style │   │   └── fixed-layout-jp.css │   └── xhtml │   ├── <first>.xhtml │   ... │   └── <last>.xhtml Probably something to do with navigation but the images are all there without missing any, so just had to compile the images back to pdf then load it to Calibre and convert file type to epub. Thanks again!