EPUB3 and KOBO devices

AcidWeb · 06-16-2015, 12:35 PM

Hello,

I'm currently trying to add support for KEPUB output in my KCC.

Naively I thought that generating valid EPUB 3.0 is enough... but that is not even close.

After long period of header smashing I successfully opened my file in Kobo for PC. But none of image appear.

This file render correctly in all EPUB readers I tested - not counting Kobo. It might look somewhat strange as it was hardcoded to Kobo Aura HD resolution but images appear.

I offer half of Princess for any information how fix this file for Kobo devices.

https://mega.co.nz/#!5sdEBALD!jLiTxP...-LOM7KZdr50tUw

PeterT · 06-16-2015, 12:45 PM

See if https://github.com/kobolabs/epub-spec offers any hints that might help.

AcidWeb · 06-16-2015, 12:51 PM

Seen that.

Additionally: https://github.com/hojel/cbz2epub3
Script that convert bare images to working KEPUB. Exactly what I need and... I can't replicate results. Even using theirs HTML/CSS structure.

I probably missing some small detail.

AcidWeb · 06-16-2015, 04:19 PM

Well as predicted cause was simple:
Special characters in EPUB file name broken the reader.

Well played Kobo.

PeterT · 06-16-2015, 05:37 PM

The standard advice for all platforms is to avoid special characters and spaces in the file names within ePubs.

AcidWeb · 06-21-2015, 03:38 AM

Yeah. Within. I'm talking about EPUB file name.

06-16-2015, 12:35 PM	#1
AcidWeb KCC Co-Author Posts: 845 Karma: 765434 Join Date: Mar 2013 Location: Poland Device: Kindle Oasis 2	EPUB3 and KOBO devices Hello, I'm currently trying to add support for KEPUB output in my KCC. Naively I thought that generating valid EPUB 3.0 is enough... but that is not even close. After long period of header smashing I successfully opened my file in Kobo for PC. But none of image appear. This file render correctly in all EPUB readers I tested - not counting Kobo. It might look somewhat strange as it was hardcoded to Kobo Aura HD resolution but images appear. I offer half of Princess for any information how fix this file for Kobo devices. https://mega.co.nz/#!5sdEBALD!jLiTxP...-LOM7KZdr50tUw

06-16-2015, 04:19 PM	#4
AcidWeb KCC Co-Author Posts: 845 Karma: 765434 Join Date: Mar 2013 Location: Poland Device: Kindle Oasis 2	Well as predicted cause was simple: Special characters in EPUB file name broken the reader. Well played Kobo. Last edited by AcidWeb; 06-16-2015 at 04:32 PM.

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06-16-2015, 12:45 PM	#2
PeterT Grand Sorcerer Posts: 12,141 Karma: 73448616 Join Date: Nov 2007 Location: Toronto Device: Nexus 7, Clara, Touch, Tolino EPOS	See if https://github.com/kobolabs/epub-spec offers any hints that might help.

06-16-2015, 12:51 PM	#3
AcidWeb KCC Co-Author Posts: 845 Karma: 765434 Join Date: Mar 2013 Location: Poland Device: Kindle Oasis 2	Seen that. Additionally: https://github.com/hojel/cbz2epub3 Script that convert bare images to working KEPUB. Exactly what I need and... I can't replicate results. Even using theirs HTML/CSS structure. I probably missing some small detail.

06-16-2015, 05:37 PM	#5
PeterT Grand Sorcerer Posts: 12,141 Karma: 73448616 Join Date: Nov 2007 Location: Toronto Device: Nexus 7, Clara, Touch, Tolino EPOS	The standard advice for all platforms is to avoid special characters and spaces in the file names within ePubs.

06-21-2015, 03:38 AM	#6
AcidWeb KCC Co-Author Posts: 845 Karma: 765434 Join Date: Mar 2013 Location: Poland Device: Kindle Oasis 2	Yeah. Within. I'm talking about EPUB file name.