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#1 |
Groupie
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Calibre cover problem
Hi, I need some help with Calibre.
I converted a text file to epub in Calibre and generated a cover in Edit metadata. Then I transferred it to my Go, and realized the title and author information should be changed. I opened the file again in Calibre, and in Edit metadata changed the cover info. The cover picture changed to reflect the new title/author, so I clicked OK and then opened the file... but the old cover was still there. I've seen so many positive comments about Calibre that I presume I'm missing something obvious. ![]() Thanks. Tom K. UPDATE: I think I found the problem. I wasn't "Saving to disk" after changing the cover. Last edited by tkavan; 02-19-2013 at 06:11 PM. Reason: UPDATED...Found the solution. |
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#2 |
Wizard
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Sometimes the Kobo reader will use the old cover that is still in memory instead of the new cover from the updated book. If this happens then powering off/on seems to fix it by causing the covers in memory to be reloaded from file.
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#3 | |
Groupie
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Tom |
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#4 |
Grand Sorcerer
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Tom,
You have sort of found it, but also not completely found what is happening. When you edit metadata in calibre, the actual book is not updated. Only the database that calibre uses is updated. The metadata in the actual book is only updated when you get calibre to send the book outside its library. As you found, it happens when you do a save to disk, it also happens with a send to device. But, calibre is only updating the it has created outside the library. If you open the book from calibre, it won't have changed. You can get the metadata updated in the library copy of the book. The traditional way to do it is a conversion to the same type. But, it can be done with the Modify ePub plugin. And in the latest version of calibre, the "Polish books" function has been added that can do it. There is another issue with this that is specific to Kobo devices and is part of what Geoff was referring to. When you send a book to the Kobo device, it process the book and adds it to the internal database. The details of the book are displayed from there. If you replace the book with a new copy that has changed metadata, the book isn't reprocessed to get the updated metadata. There isn't a way to fix this at the moment other than deleting the book from the device first. The covers are a little different. If the book is in the main memory of the device, the device generates the cover as needed and saves the image file for later use. When the book is resent, this doesn't trigger the covers to be regenerated. But, there is an option in the calibre driver that will replace existing cover images. If the book is on the micro SD card, the cover is generated each time it is needed and not save. Replacing that book should use the new cover from the book straight away. Because of the above, I have on my todo list for the Kobo driver to add a "Remove covers on resend" option. Updating the metadata is also something to do, but I am thinking of a different approach to start with. |
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#5 | |
Groupie
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Quote:
Thanks for the detailed explanation regarding my problem. Could I ask a question on a different topic? The item I was talking about was a book review, not a book. I had it as a text file, and converted it to epub using an online converter. When I opened it in Calibre, all the quotation marks and apostrophes were replaced by little boxes... hollow squares. I couldn't find any way to fix that in Calibre, so I used Calibre to generate the epub file, and all was OK. Which I guess makes sense. But is there a way to edit files in Calibre? To use a search-and-replace for example to fix problems or do text formatting? Or do you have to do all that before converting it to an epub? And if the answer to the last question is "Yes," what's the best format to work in to prepare a file for Calibre to convert to epub? Thanks, Tom Last edited by tkavan; 02-19-2013 at 08:25 PM. |
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#6 | ||
Grand Sorcerer
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Quote:
Trying the conversion yourself is a good idea even if you don't change any settings. A lot of on-line conversions sites use calibre for the conversion, but are using an old version. The current version usually does a better job. Quote:
Best format for input to the conversion is probably HTML. epubs are really a zip container with HTML files in them. That means if you have a nicely formatted HTML file, the epub should be OK. But, calibre does a reasonable conversion of most formats, so it really depends on where you are getting the text from and what you are comfortable with. If you are writing a novel in Word, then you can save it as HTML, and convert that (there are ways to improve this). If you have plain text, start with that and then edit in Sigil to change formatting. If you have mobi files, the conversion is very good. |
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#7 | |
Groupie
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#8 | |
Grand Sorcerer
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I'm not sure if this is related but... I often need to update a book using calibre. If I do the following, Kobo doesn't see the book: 1) delete the book on the Kobo 2) plug in the Kobo 2) Start calibre (calibre shows the book isn't on the device) 3) send the book to the Kobo (using send from calibre) 4) eject and unplug the Kobo The book doesn't show up on the Kobo . If I do the following: 1) delete the book on the Kobo 2) plug the Kobo in 3) eject and unplug the Kobo 4) wait for it to finish processing content 5) plug the device in' 6) use calibre to transfer the book 7) eject The book appears on the Kobo . So now I always do an extra plug/unplug cycle. I needed to this on the Touch, so now I do it on the Glo. This maybe voodoo, but it works. ![]() |
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#9 | |
Member
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![]() Cheers! |
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#10 | ||
Grand Sorcerer
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What happens if you delete the book from the device using calibre and then send it again? |
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#11 | |
Grand Sorcerer
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Quote:
Right now, if you set the "Upload cover" option, it will replace the covers that have been generated on the device for a book when you resend book. There will be differences in the covers displayed because the device generates them from the first page of the book but calibre is using whatever cover it has in the metadata and resizing it. |
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#12 | |
Bibliophagist
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Regards, David Last edited by DNSB; 02-20-2013 at 10:00 PM. Reason: deleted much of the quoted message to shorten the message |
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#13 | |
Grand Sorcerer
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#14 | |
Bibliophagist
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Regards, David |
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#15 | |
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Quote:
![]() I created some eBooks in Sigil from text files, and then just added a cover image using metadata in calibre. But on the Glo the "cover" shows the first page of text. I had assumed it would reference the image in the metadata and not actually need an image within the ePub file. Thanks! |
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