What is a "jacket" in an ebook?

Hoods7070 · 04-28-2012, 06:14 AM

Sorry for what might be a ridiculous question to the initiated ... I, of the Great Unwashed, have been playing with KiwiDude's quality check plugin, and wondering what an ebook "jacket" is ... ?

HarryT · 04-28-2012, 12:18 PM

Please ask Calibre questions in the Calibre forum. That's why we have one.

kiwidude · 04-28-2012, 01:32 PM

A "jacket" is an html page inserted inside an ebook that shows a summary of the ebook using metadata from your library like title, author, rating and description. Kind of like the back cover of a book (i.e. the "jacket" of a hardback). You can turn this feature on when you do an ebook conversion in the conversion dialog options of Structure Detection -> Insert metadata as page at start of book.

Some people like them, other people don't. Quality Check gives you a way of finding which of your ePubs have them or dn't have them, depending on what you are looking for. Calibre also changed the way it formats those jacket html pages a long while ago, so the QC plugin allows you to identify such "legacy" jackets as well.

The Modify ePub plugin offers a quick way (for ePubs) of either inserting, updating or removing such metadata jackets without having to do a conversion.

Hoods7070 · 04-28-2012, 06:56 PM

Thanks, KD - appreciate that. Getting to know how epubs work is something of a learning curve.

04-28-2012, 06:14 AM	#1
Hoods7070 Groupie Posts: 159 Karma: 24430 Join Date: Mar 2012 Location: Australia Device: Nexus 7"	What is a "jacket" in an ebook? Sorry for what might be a ridiculous question to the initiated ... I, of the Great Unwashed, have been playing with KiwiDude's quality check plugin, and wondering what an ebook "jacket" is ... ?

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04-28-2012, 12:18 PM	#2
HarryT eBook Enthusiast Posts: 85,544 Karma: 93383099 Join Date: Nov 2006 Location: UK Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6	Please ask Calibre questions in the Calibre forum. That's why we have one.

04-28-2012, 01:32 PM	#3
kiwidude Calibre Plugins Developer Posts: 4,720 Karma: 2197770 Join Date: Oct 2010 Location: Australia Device: Kindle Oasis	A "jacket" is an html page inserted inside an ebook that shows a summary of the ebook using metadata from your library like title, author, rating and description. Kind of like the back cover of a book (i.e. the "jacket" of a hardback). You can turn this feature on when you do an ebook conversion in the conversion dialog options of Structure Detection -> Insert metadata as page at start of book. Some people like them, other people don't. Quality Check gives you a way of finding which of your ePubs have them or dn't have them, depending on what you are looking for. Calibre also changed the way it formats those jacket html pages a long while ago, so the QC plugin allows you to identify such "legacy" jackets as well. The Modify ePub plugin offers a quick way (for ePubs) of either inserting, updating or removing such metadata jackets without having to do a conversion.

04-28-2012, 06:56 PM	#4
Hoods7070 Groupie Posts: 159 Karma: 24430 Join Date: Mar 2012 Location: Australia Device: Nexus 7"	Thanks, KD - appreciate that. Getting to know how epubs work is something of a learning curve.

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