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#2971 |
Well trained by Cats
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Karma: 57979022
Join Date: Aug 2009
Location: The Central Coast of California
Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A
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There is so much OFF advice out there
![]() 1) The plugin works with the Calibre device driver, so it knows about the Kobo (model) needs. 2) Kobo can use EPUB or KEPUB so no need to make the Library have KEPUB just to read on a Kobo. There are additional features that can be gaind. ![]() 3) The extended edition CAN convert an EPUB on the fly, the copy book being sent (the Kepub is only on the device) >>> This is a great reason to NOT backdoor (use the OS) to side load. (you set this on the 'Extended' tab. see image. It has been quite a while, so I do not remember all what I needed to do... But the PI works as installed. Configuration just gets you MORE and is the place where you tell it what custom columns (or folders) to use for that MORE. |
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#2972 |
Junior Member
![]() Posts: 3
Karma: 10
Join Date: Jan 2022
Device: Kobo Clara HD
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Hey guys, I have an epub that I have cleaned up and polished, however when I use KTE to send to my Calibre HD (latest firmware), some of the formatting has random breaks in the paragraphs.
Both the epub and kepub appear correct when viewing in Calibre on my PC, but in the Kobo, have this issue. Any tips for what to look for? |
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#2973 | |
Resident Curmudgeon
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Karma: 134319572
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
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#2974 |
Generally Awesome Person
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Karma: 2178847
Join Date: Jan 2013
Location: /dev/kmem
Device: Kobo Clara HD, Kindle Oasis
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Are you able to get a picture of what it looks like? Is it a full paragraph break or a line break? Is it breaking in the middle of a word or always between words?
Can you use the Scramble ePub plugin to generate a scrambled book file and share that with us? Make sure to include some detail about where you see an unexpected break (chapter 2, in the first few pages) so I can find it in the scrambled book. |
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#2975 | ||
Junior Member
![]() Posts: 3
Karma: 10
Join Date: Jan 2022
Device: Kobo Clara HD
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![]() Here is a photo from the Kobo. After "Just her car." Is a random space that shouldn't be there, and that text should be indented also. Have attached a scrambled copy, any of the chapters with hyphen (eg 11-1) are the areas that have issue. |
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#2976 |
Well trained by Cats
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 30,279
Karma: 57979022
Join Date: Aug 2009
Location: The Central Coast of California
Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A
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A Script dialog.
It is a Hanging indent (-5.7) and the 'trick' (spaces) that is used to keep the text in a block for the first line. |
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#2977 | |
Generally Awesome Person
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Karma: 2178847
Join Date: Jan 2013
Location: /dev/kmem
Device: Kobo Clara HD, Kindle Oasis
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Looking at it, it's possibly a bug in the KePub rendering engine, but the ebook publisher is doing some things that make me question their layout people and I would blame them before I go blaming the rendering engine. It even looks odd in the calibre edit book preview window.
As one example, in chapter11-1.xhtml you have a line (obviously from the scrambled book): Quote:
The CSS is also doing some things I'm not sure they have any legitimate reason to. The span surrounding "Yloka:" has its margins set to "10px 0 10px 5.7em"; the values are for top, right, bottom, and left, respectively. Then it sets text-indent to -5.7em, which visually has the effect of undoing the 5.7em left margin... but why? Why have a single CSS rule fighting with itself? Without the weird things they're doing, I strongly suspect the book would render fine in both ePub and KePub engines, but I'm not doing the work to reformat the book into something that makes some semblance of sense just to check that. I'm pretty sure I know what they're trying to do, but there are multiple much better ways for them to accomplish it. |
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#2978 | ||
Guru
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Karma: 418804
Join Date: Jun 2015
Device: Rocketbook, kobo aura h2o, kobo forma, kobo libra color
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Most of the interesting things this plugin does needs configuration. Quote:
If books don't show up when you add them, either they're not in a format the kobo recognizes, or your kobo's database is corrupt, or you didn't give it time to import. (Or maybe it is there and you just didn't find it.) |
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#2979 | |
Resident Curmudgeon
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 75,684
Karma: 134319572
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3
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#2980 |
Connoisseur
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Karma: 1255124
Join Date: Feb 2013
Location: Ontario, Canada
Device: Kobo Libra Colour, Kobo Libra 2, Kobo Libra H2O, Kindle Oasis 9
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Using KTE/kepub output/kepub metadata writer, is there a way to convert a book to kepub not-on-the-fly, such that metadata options like cover span (unchecked 'keep cover aspect ratio') are saved to the Calibre library or 'hard coded' (so-to-speak) into the book?
I convert my books in advance to kepub in Calibre, and some options (like full cover span) only work when the Kobo is physically connected via USB. However, I don't physically connect my Kobo via USB and instead I use Calibre-Web + Kobo Sync API (wireless) for books to appear on my device. I'm trying to find a way for Calibre-Web to pickup the metadata preferences/settings that I use in KTE in Calibre if that flow makes sense. |
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#2981 | |
Connoisseur
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 75
Karma: 1255124
Join Date: Feb 2013
Location: Ontario, Canada
Device: Kobo Libra Colour, Kobo Libra 2, Kobo Libra H2O, Kindle Oasis 9
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#2982 | |
Generally Awesome Person
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Karma: 2178847
Join Date: Jan 2013
Location: /dev/kmem
Device: Kobo Clara HD, Kindle Oasis
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1. Install the "KePub Output" and "KePub Metadata Writer" plugins to add the ability to convert to KePub in calibre as a conversion target format. There's also a "KePub Input" and "KePub Metadata Reader" plugin if you want to be able to import KePub books (must have a single '.kepub' extension, not the usual '.kepub.epub'). 2. Let calibre-web do the conversion on the fly using the kepubify binary. If you're using the linuxserver.io Docker container it's pre-installed at /usr/bin/kepubify, otherwise you have to get the binary yourself. Go to your admin settings, under Basic Configuration expand External Binaries, then set the location of the kepubify binary. When set, calibre-web will convert to kepub as needed. 2.5. Use kepubify to convert the books yourself on the command line and import those into calibre. Do not recommend, the other two options are much better and easier. |
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#2983 | |
Connoisseur
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 75
Karma: 1255124
Join Date: Feb 2013
Location: Ontario, Canada
Device: Kobo Libra Colour, Kobo Libra 2, Kobo Libra H2O, Kindle Oasis 9
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Quote:
I take an epub, convert it to kepub via option 1 ahead of time in Calibre. I want the cover to 'span' the full device front page (yes, with a little distortion, but avoiding the pillarbox or 'black bars' effect on my fancy new colour reader). I deselect 'preserve cover aspect ratio in KTE', and convert it to kepub with the output plugin and KTE driver ahead of time. Full cover works: when I send the book via USB, but that's difficult because it's a 'headless' home server, which is why I prefer kobo sync api on C-W. Full cover doesn't work: (black pillarbox effect) when I send wirelessly via Kobo Sync API, despite having previously converted the book in Calibre using KTE/output. Does that mean the metadata (or cover options specifically) from KTE and the kepub output plugins require a physical connection only to send to the device? Or that C-W isn't passing the metadata properly wirelessly. Or possibly something else I'm not grasping? thanks again! |
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#2984 |
Generally Awesome Person
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Posts: 1,080
Karma: 2178847
Join Date: Jan 2013
Location: /dev/kmem
Device: Kobo Clara HD, Kindle Oasis
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I suspect what's happening here is a matter of the book cover versus the metadata cover. In calibre's file system, alongside the book you'll see "cover.jpg". This is what gets added to the book file unless you specify different options in conversion. If you unpack the KePub and inspect the converted book cover and cover.jpg, I bet they're different.
Beyond here I'm a little more fuzzy on details. As I understand it, metadata sent over to Kobo by calibre-web, as a consequence of how Kobo syncs, is the metadata shown in the UI, not what's in the book itself. The cover is included in "metadata" and is fetched by Kobo separately from the book, and you get whatever is cover.jpg showing as the book cover on the device. If you open your book and go back to the cover page, it's probably the image you're expecting to see. So, my best educated guess would be to change the cover itself in calibre to be the dimensions you want rather than do it in book conversion options. How exactly, I'm not sure, I don't have a calibre install accessible right now and I've never needed to do it. |
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#2985 | |
Bibliophagist
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Karma: 153006038
Join Date: Jul 2010
Location: Vancouver
Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos
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Tags |
error, kobo aura one |
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