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Old 08-06-2020, 12:04 PM   #1
lburg801
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Question Converting Kindle books with sequential art
So epub conversions are a disaster for this type of book. Sometimes, when the text is a fixed part of the image, I can use the unpack option and create a cbr or pdf (using Adobe pro).

The scale and resolution of kindle images are often inconsistent (probably purposefully so), making creating a dual page pdf presentation a mammoth task.

Is there a program in which one can do bulk scale and resolution changes?

I see from the sticky notes above that my disappointing encounters with doing pdf conversions is a known problem (though I did report the cropping of the right side of images as a bug before visiting this forum).
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Old 08-06-2020, 12:08 PM   #2
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Don't convert to ePub. Use the KindleUnpack plugin to format shift from KF8 to ePub. Then load the ePub in the editor and use epubcheck (if you don't have it, you can download the plugin) and check for errors. Fix the errors and then see how the ePub came out. What I do when I check for errors is check with both the Calibre error checker and epubcheck. I make sure both say no errors.

Then you can check the ePub and see how it looks. It should be as close to the KF8 as possible.
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Old 08-06-2020, 04:17 PM   #3
lburg801
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Originally Posted by JSWolf View Post
Don't convert to ePub. Use the KindleUnpack plugin to format shift from KF8 to ePub. Then load the ePub in the editor and use epubcheck (if you don't have it, you can download the plugin) and check for errors. Fix the errors and then see how the ePub came out. What I do when I check for errors is check with both the Calibre error checker and epubcheck. I make sure both say no errors.

Then you can check the ePub and see how it looks. It should be as close to the KF8 as possible.
KindleUnpack is what I use to access the images ... I get 3 folders and use the images found in the mobil8 folder. If the images contain the text, it is easy to create a cbr from them ... but not so easy to create a pdf book if the images are different sizes. (NOTE: After asking if there was a way to bulk scale these images I searched for a software to do that and discovered a free site that I just used successfully to resize all at once [bulkresizephotos.com]. It worked perfectly.)

But back to your instructions ... I did a search while in preferences for the epubcheck plugin and had no luck ... so I am unable to do that step. Can you provide a link to the epubcheck plugin download so that I can try it?

I used KindleUpnpack to create an epub and it is equally unusable, at least so far.

In Calibre's editor, I selected "Fix all HTML files" , "Remove unused CSS rules" and "Check Book", the latter of which detected errors that could not be fixed automatically:
ERROR: Missing standard property 'transform' to go along with '-webkit-transform'.****[OEBPS/Styles/style0001.css]
ERROR: Missing standard property 'transform' to go along with '-webkit-transform'.****[OEBPS/Styles/style0001.css]
ERROR: Duplicate property 'word-spacing' found.****[OEBPS/Styles/style0001.css]
ERROR: Duplicate property 'word-spacing' found.****[OEBPS/Styles/style0001.css]
ERROR: Duplicate property 'word-spacing' found.****[OEBPS/Styles/style0001.css]
ERROR: Duplicate property 'word-spacing' found.****[OEBPS/Styles/style0001.css]
ERROR: Duplicate property 'word-spacing' found.****[OEBPS/Styles/style0001.css]
ERROR: Duplicate property 'word-spacing' found.****[OEBPS/Styles/style0001.css]
ERROR: Duplicate property 'word-spacing' found.****[OEBPS/Styles/style0001.css]
ERROR: Duplicate property 'word-spacing' found.****[OEBPS/Styles/style0001.css]
WARNING: The CSS font-family name Bookmania-Black does not match the actual font name Bookmania Black****[OEBPS/Styles/style0001.css]
WARNING: The CSS font-family name Bookmania-Light does not match the actual font name Bookmania Light****[OEBPS/Styles/style0001.css]
WARNING: The CSS font-family name Bookmania-S does not match the actual font name Bookmania Semibold****[OEBPS/Styles/style0001.css]
WARNING: The CSS font-family name Bookmania-S does not match the actual font name Bookmania Semibold****[OEBPS/Styles/style0001.css]
Many thanks!
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Old 08-06-2020, 07:00 PM   #4
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If you use the debug line item to open the detected duplicate offense ,
you will see that it has been specified twice. You need to delete the one that YOU deem is wrong (or simply redundant) BTW do NOT close up the line at this time, only remove the content or you will need to rerun Debug as the line numbers will change

You need to repeat for each detected error
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Old 08-06-2020, 10:47 PM   #5
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This will be a fixed layout book, calibre does not support those.
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Old 08-07-2020, 10:04 AM   #6
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Originally Posted by kovidgoyal View Post
This will be a fixed layout book, calibre does not support those.
Too bad, because Kindle ruins picture books.

I have always loved childrens' picture books and with Covid and time on my hand, I have been checking out ebook versions ... and writing negative reviews about what Kindle does to them!

Perhaps it is not so bad on an Amazon device, but when reading these books with the Kindle app on my pc laptop, the images are swallowed up by the app ... too much app and too little book. The art can be good and the story cute, but the experience reading it is not enjoyable. .... Too bad they cannot be rescued via a conversion.
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Old 08-07-2020, 11:18 AM   #7
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on Amazon Fire Tablets ( which they'd love you to buy), comics look pretty good. its a full screen, no distractions experience.

any make of tablet should go to full screen with its kindle app though, and be very useable
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Old 08-07-2020, 03:34 PM   #8
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on Amazon Fire Tablets ( which they'd love you to buy), comics look pretty good. its a full screen, no distractions experience.

any make of tablet should go to full screen with its kindle app though, and be very useable
Granchildren have varius brands of tablets ... some android, some Apple, and all complain of difficulty using the Kindle app ... just generally.

What Kindle does to picture books, beyond how it is displayed in the app, is to not mirror the format of the hard copy ... to me a travesty! Especially for particularly beautifully designed books.

I need to stick with brick and mortar libraries and retailers! Also, youngest grandchild is now a reader and beginning to discover chapter books. Now who can I use as an excuse to buy?!
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Old 08-08-2020, 12:20 AM   #9
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i have read actual comics/graphic novels from amazon kindle store, which have the option of one pane at a time guided view in Kindle apps. I guess you are trying to read fixed layout picture books that behave more like pdf ?. maybe you could turn them into actual pdf and use a different reader app ?
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Old 08-08-2020, 12:59 AM   #10
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i have read actual comics/graphic novels from amazon kindle store, which have the option of one pane at a time guided view in Kindle apps. I guess you are trying to read fixed layout picture books that behave more like pdf ?. maybe you could turn them into actual pdf and use a different reader app ?
Yes, fixed layout. Unfortunately, conversions to pdfs don't work. Moreover, if you look back in this thread, kovidgoyal states that as this is ". . . calibre does not support those."

The only solution to my problem is to stop looking at picture books in the kindle format!!!
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Old 08-08-2020, 01:02 AM   #11
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I know that calibre cant convert fixed layout, but maybe there are other programs that can ?
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Old 08-08-2020, 09:10 AM   #12
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I know that calibre cant convert fixed layout, but maybe there are other programs that can ?
I realized, after submitting my last reply, that I really don't know what fixed format is ... but in these instances, the image is the page on which the text is "projected" ... ??? ... and I got involved in trying to undo the Kindle mess by accident. I think I am cured. No more Kindle books!
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