KF8 Output

JSWolf · 04-27-2012, 07:46 PM

What settings do I need to use to convert an ePub to a KF8?

PeterT · 04-27-2012, 07:54 PM

From the readme

Experimental support for generating Amazon's new KF8 format MOBI files
calibre can now generate Amazon's new KF8 format MOBI files. To turn on this feature, go to Preferences->Tweaks and click Plugin Tweaks. In the box add: test_mobi_output_type = 'both' calibre will now produce MOBI files that have both the old MOBI format and the new KF8 format in them. To learn more about KF8, see: http://www.amazon.com/gp/feature.html?docId=1000729511 Note that calibre support for KF8 is still experimental and there will likely be bugs.

JSWolf · 04-27-2012, 09:24 PM

I don't see Tweaks in Calibre.

Edit: Never mind. Found it

JSWolf · 04-27-2012, 09:39 PM

My next question is if I want to remove KF8 output, how do I do so?

kovidgoyal · 04-27-2012, 11:33 PM

Delete the tweak you just made.

JSWolf · 04-28-2012, 11:35 AM

Quote:

Originally Posted by kovidgoyal

Delete the tweak you just made.

Where do I do that?

PeterT · 04-28-2012, 12:38 PM

Same place as before; just highlight the stuff you added in Plugin Tweaks and delete it, or add a # symbol before it to make it into a comment.

gers1978 · 04-28-2012, 12:53 PM

Is there any advantage to converting a non-MOBI file to a KF8 mobi file rather than a non-KF8 mobi file?

kovidgoyal · 04-28-2012, 12:57 PM

KF8 is basically the same as EPUB. So by converting to KF8 you will preserve any advanced formatting. This is useful for the future even if you do not have any devices currently capable of reading KF8. The KF8 MOBI file should work exactly the same as the old MOBI file on your current devices, so there is no downside to generating KF8 (apart from a little extra storage space to store the larger file).

Whackatagin · 04-28-2012, 01:01 PM

On a global scale, KF8 is meaningless. Fire reads mobi fine, the rest of the world gets nothing from KF8 enhancement, except bugs and glitches when viewing content that is not provided by "preferred suppliers".

Sad but true!

Hey Kov? Still not planning a commercial version of Calibre for pro conversion? You're still way ahead of Adobe, Amazon...etc. The market needs just such an animal. Poll it, and see how many SP's and small Pubs "yes" the idea. You could become a very rich man,

)

gers1978 · 04-28-2012, 01:04 PM

Quote:

Originally Posted by kovidgoyal

KF8 is basically the same as EPUB. So by converting to KF8 you will preserve any advanced formatting. This is useful for the future even if you do not have any devices currently capable of reading KF8. The KF8 MOBI file should work exactly the same as the old MOBI file on your current devices, so there is no downside to generating KF8 (apart from a little extra storage space to store the larger file).

Thanks. What devices support KF8 "enhanced" files? Is it only the Fire?

kovidgoyal · 04-28-2012, 02:11 PM

Quote:

Originally Posted by gers1978

Thanks. What devices support KF8 "enhanced" files? Is it only the Fire?

The Fire and the Kindle Touch, the calibre viewer, The Kindle for PC and Mac apps. The Kindle cloud reader.

HarryT · 04-28-2012, 02:16 PM

Quote:

Originally Posted by kovidgoyal

The Fire and the Kindle Touch.

And a couple of the Kindle apps - I believe both Kindle for PC and Kindle for Mac now support KF8.

JSWolf · 04-28-2012, 02:28 PM

Quote:

Originally Posted by PeterT

Same place as before; just highlight the stuff you added in Plugin Tweaks and delete it, or add a # symbol before it to make it into a comment.

Thanks. I found it.

JSWolf · 04-28-2012, 02:28 PM

KF8 does preserve simple things like blockquotes which does make a noticeable difference in reading ePub vs. Mobipocket.

04-27-2012, 07:46 PM	#1
JSWolf Resident Curmudgeon Posts: 73,957 Karma: 128903250 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	KF8 Output What settings do I need to use to convert an ePub to a KF8?

04-27-2012, 07:54 PM	#2
PeterT Grand Sorcerer Posts: 12,166 Karma: 73448616 Join Date: Nov 2007 Location: Toronto Device: Nexus 7, Clara, Touch, Tolino EPOS	From the readme Experimental support for generating Amazon's new KF8 format MOBI files calibre can now generate Amazon's new KF8 format MOBI files. To turn on this feature, go to Preferences->Tweaks and click Plugin Tweaks. In the box add: test_mobi_output_type = 'both' calibre will now produce MOBI files that have both the old MOBI format and the new KF8 format in them. To learn more about KF8, see: http://www.amazon.com/gp/feature.html?docId=1000729511 Note that calibre support for KF8 is still experimental and there will likely be bugs.

04-27-2012, 09:24 PM	#3
JSWolf Resident Curmudgeon Posts: 73,957 Karma: 128903250 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	I don't see Tweaks in Calibre. Edit: Never mind. Found it Last edited by JSWolf; 04-27-2012 at 09:35 PM.

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04-27-2012, 09:39 PM	#4
JSWolf Resident Curmudgeon Posts: 73,957 Karma: 128903250 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	My next question is if I want to remove KF8 output, how do I do so?

04-27-2012, 11:33 PM	#5
kovidgoyal creator of calibre Posts: 43,851 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Delete the tweak you just made.

04-28-2012, 12:38 PM	#7
PeterT Grand Sorcerer Posts: 12,166 Karma: 73448616 Join Date: Nov 2007 Location: Toronto Device: Nexus 7, Clara, Touch, Tolino EPOS	Same place as before; just highlight the stuff you added in Plugin Tweaks and delete it, or add a # symbol before it to make it into a comment.

04-28-2012, 12:53 PM	#8
gers1978 Addict Posts: 392 Karma: 1008414 Join Date: Jun 2011 Device: Kindle	Is there any advantage to converting a non-MOBI file to a KF8 mobi file rather than a non-KF8 mobi file?

04-28-2012, 12:57 PM	#9
kovidgoyal creator of calibre Posts: 43,851 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	KF8 is basically the same as EPUB. So by converting to KF8 you will preserve any advanced formatting. This is useful for the future even if you do not have any devices currently capable of reading KF8. The KF8 MOBI file should work exactly the same as the old MOBI file on your current devices, so there is no downside to generating KF8 (apart from a little extra storage space to store the larger file).

04-28-2012, 01:01 PM	#10
Whackatagin Tweaker Posts: 102 Karma: 324366 Join Date: Jan 2012 Location: Scotland Device: Kindle / KOBO / PC	On a global scale, KF8 is meaningless. Fire reads mobi fine, the rest of the world gets nothing from KF8 enhancement, except bugs and glitches when viewing content that is not provided by "preferred suppliers". Sad but true! Hey Kov? Still not planning a commercial version of Calibre for pro conversion? You're still way ahead of Adobe, Amazon...etc. The market needs just such an animal. Poll it, and see how many SP's and small Pubs "yes" the idea. You could become a very rich man, )

04-28-2012, 02:28 PM	#15
JSWolf Resident Curmudgeon Posts: 73,957 Karma: 128903250 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	KF8 does preserve simple things like blockquotes which does make a noticeable difference in reading ePub vs. Mobipocket.