Calibre v8.0 kepub features?

Lavender · 03-21-2025, 02:42 AM

I'm a new kobo user, and my library is mostly built with .epub files. I just looked over the changelog for v8, and saw the mention that calibre can now convert files on sync to .kepub. Can someone explain why I would want this? My .epub files seem to work well so far, but I've only read a couple books so far. Am I missing something?

kovidgoyal · 03-21-2025, 02:52 AM

If you have already installed the KoboTouch Extended plugin then it will be automagically converting epub to kepub when sending books to your device. In calibre v8 that now happens without needing the plugin. So you dont need to change anything. If you havent installed the plugin and you want to actually read EPUB rather than KEPUB on your device, then you just need to untick the setting in the driver to "use kobo viewer for EPUB books"

Lavender · 03-21-2025, 03:22 AM

Quote:

Originally Posted by kovidgoyal

If you have already installed the KoboTouch Extended plugin then it will be automagically converting epub to kepub when sending books to your device. In calibre v8 that now happens without needing the plugin. So you dont need to change anything. If you havent installed the plugin and you want to actually read EPUB rather than KEPUB on your device, then you just need to untick the setting in the driver to "use kobo viewer for EPUB books"

Thanks for the reply. I guess what I should be asking is what are the benefits of using .kepub on my device rather than the .epub files?

kovidgoyal · 03-21-2025, 03:28 AM

The main benefit is the Kobo renderer is faster and crashes less, especially on larger books. There are other minor things like reading progress bar graphs, better standards support, etc.

Lavender · 03-21-2025, 04:13 AM

Quote:

Originally Posted by kovidgoyal

The main benefit is the Kobo renderer is faster and crashes less, especially on larger books. There are other minor things like reading progress bar graphs, better standards support, etc.

Sounds good to me. Thanks again!

Leonatus · 03-21-2025, 05:05 AM

Windows 10, 64 bit.
Just installed V.8.0, but it doesn't start.
Someone said one should delete the KoboTouchExtended driver, but how can I do this when the program itself doesn't run?

BetterRed · 03-21-2025, 05:11 AM

See calibre-customize --remove-plugin

BR

Leonatus · 03-21-2025, 05:55 AM

Hm, this is technically too high to me, sorry!

Grins · 03-21-2025, 06:07 AM

If easier:

(1) Install previous version of calibre (7.26)

(2) Delete the plugin "KoboTouchExtended" using the calibre functionality:

Preferences -> Plugins -> (select plugin) -> Remove plugin

(3) Install calibre 8.0

This should probably do the trick.

kovidgoyal · 03-21-2025, 06:35 AM

Released 8.0.1 with the fix.

manjade · 03-21-2025, 07:05 AM

in the release update it says "can be configured by right clicking the kobo icon in calibre" but I can't find a "kobo icon" –*where is it?

Uncle Robin · 03-21-2025, 07:28 AM

Quote:

Originally Posted by kovidgoyal

If you have already installed the KoboTouch Extended plugin then it will be automagically converting epub to kepub when sending books to your device. In calibre v8 that now happens without needing the plugin. So you dont need to change anything. If you havent installed the plugin and you want to actually read EPUB rather than KEPUB on your device, then you just need to untick the setting in the driver to "use kobo viewer for EPUB books"

Is this customisable per library? I read primarily on KOReader, so prefer epubs, but my wife uses only Kobo stock on her Libra colour, so converting to kepubs would be great for her library

Lavender · 03-21-2025, 07:53 AM

Quote:

Originally Posted by manjade

in the release update it says "can be configured by right clicking the kobo icon in calibre" but I can't find a "kobo icon" –*where is it?

I think he's meaning the device toolbar icon, which will only appear when you connect the kobo.

Leonatus · 03-21-2025, 10:04 AM

V.8.01 starting as usual. thank you all for the help!
As far as I understand, the KoboTouchExtended driver has been automatically disabled by the new version. Does this driver still have any functionality at all? Otherwise, I can remove it completely.

kovidgoyal · 03-21-2025, 10:15 AM

Quote:

Originally Posted by Uncle Robin

Is this customisable per library? I read primarily on KOReader, so prefer epubs, but my wife uses only Kobo stock on her Libra colour, so converting to kepubs would be great for her library

No, it's a driver setting but you can further optionally specify a template to decide which books should be sent as KEPUB.

03-21-2025, 02:42 AM	#1
Lavender Connoisseur Posts: 85 Karma: 514138 Join Date: Jan 2025 Device: Kobo Clara BW	Calibre v8.0 kepub features? I'm a new kobo user, and my library is mostly built with .epub files. I just looked over the changelog for v8, and saw the mention that calibre can now convert files on sync to .kepub. Can someone explain why I would want this? My .epub files seem to work well so far, but I've only read a couple books so far. Am I missing something?

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03-21-2025, 02:52 AM	#2
kovidgoyal creator of calibre Posts: 45,609 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	If you have already installed the KoboTouch Extended plugin then it will be automagically converting epub to kepub when sending books to your device. In calibre v8 that now happens without needing the plugin. So you dont need to change anything. If you havent installed the plugin and you want to actually read EPUB rather than KEPUB on your device, then you just need to untick the setting in the driver to "use kobo viewer for EPUB books"

03-21-2025, 03:28 AM	#4
kovidgoyal creator of calibre Posts: 45,609 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	The main benefit is the Kobo renderer is faster and crashes less, especially on larger books. There are other minor things like reading progress bar graphs, better standards support, etc.

03-21-2025, 05:05 AM	#6
Leonatus Wizard Posts: 1,088 Karma: 11502975 Join Date: Mar 2013 Location: Guben, Brandenburg, Germany Device: Kobo Clara 2E, Tolino Shine 3	Windows 10, 64 bit. Just installed V.8.0, but it doesn't start. Someone said one should delete the KoboTouchExtended driver, but how can I do this when the program itself doesn't run?

03-21-2025, 05:11 AM	#7
BetterRed null operator (he/him) Posts: 22,018 Karma: 30277294 Join Date: Mar 2012 Location: Sydney Australia Device: none	See calibre-customize --remove-plugin BR

03-21-2025, 05:55 AM	#8
Leonatus Wizard Posts: 1,088 Karma: 11502975 Join Date: Mar 2013 Location: Guben, Brandenburg, Germany Device: Kobo Clara 2E, Tolino Shine 3	Hm, this is technically too high to me, sorry!

03-21-2025, 06:07 AM	#9
Grins Connoisseur Posts: 58 Karma: 216 Join Date: May 2009 Location: Germany Device: Kobo(s), Pocketbook(s), MacBook Pro, iPhone	If easier: (1) Install previous version of calibre (7.26) (2) Delete the plugin "KoboTouchExtended" using the calibre functionality: Preferences -> Plugins -> (select plugin) -> Remove plugin (3) Install calibre 8.0 This should probably do the trick.

03-21-2025, 06:35 AM	#10
kovidgoyal creator of calibre Posts: 45,609 Karma: 28549044 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Released 8.0.1 with the fix.

03-21-2025, 07:05 AM	#11
manjade Junior Member Posts: 5 Karma: 10 Join Date: Apr 2023 Device: KOBO 2E	in the release update it says "can be configured by right clicking the kobo icon in calibre" but I can't find a "kobo icon" –*where is it?

03-21-2025, 10:04 AM	#14
Leonatus Wizard Posts: 1,088 Karma: 11502975 Join Date: Mar 2013 Location: Guben, Brandenburg, Germany Device: Kobo Clara 2E, Tolino Shine 3	V.8.01 starting as usual. thank you all for the help! As far as I understand, the KoboTouchExtended driver has been automatically disabled by the new version. Does this driver still have any functionality at all? Otherwise, I can remove it completely.