Register Guidelines E-Books Search Today's Posts Mark Forums Read

Go Back   MobileRead Forums > E-Book Software > Calibre > Editor

Notices

Reply
 
Thread Tools Search this Thread
Old 11-19-2020, 04:46 AM   #1
larysa
Zealot
larysa began at the beginning.
 
Posts: 110
Karma: 10
Join Date: Feb 2016
Device: iPad mini 4
number of pages... mystery!

hi to everybody.
i read a large number of ebooks and in each book (read from ipad with ibooks) i see at the bottom of the page, the number of pages remaining in the chapter and the number of total pages in the book. like this example:



in one book i don't see this data... i think this data is missing in .ncx or .opf files or container.xml. suggestion?

Last edited by larysa; 11-19-2020 at 04:49 AM.
larysa is offline   Reply With Quote
Old 11-19-2020, 05:40 AM   #2
thiago.eec
Evangelist
thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.
 
Posts: 449
Karma: 155084
Join Date: Dec 2016
Location: Goiânia - Brazil
Device: iPad, Kindle Paperwhite
Quote:
Originally Posted by larysa View Post
hi to everybody.
i read a large number of ebooks and in each book (read from ipad with ibooks) i see at the bottom of the page, the number of pages remaining in the chapter and the number of total pages in the book. like this example:



in one book i don't see this data... i think this data is missing in .ncx or .opf files or container.xml. suggestion?
The number of pages is not set anywhere inside the book. It is calculated based on screen and font size. If you change the font size, you'll see the number of pages changing accordingly.

This particular book may be malformed/corrupted in someway. Open it in the editor and check for errors (Check Book and Epubcheck).
thiago.eec is offline   Reply With Quote
Advert
Old 11-19-2020, 07:00 AM   #3
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 60,458
Karma: 64502597
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Aura H2O, PRS-650, PRS-T1, nook STR, iPad 4, iPhone SE 2020, PW3
Quote:
Originally Posted by thiago.eec View Post
The number of pages is not set anywhere inside the book. It is calculated based on screen and font size. If you change the font size, you'll see the number of pages changing accordingly.

This particular book may be malformed/corrupted in someway. Open it in the editor and check for errors (Check Book and Epubcheck).
How the pages are displayed depends on what program is being used. If you use RMSDK (ADE) then the page numbers will not change when you change the font size. But if you use Books then the page number will change with a font size change. ADE page numbers are the most accurate page numbers for ePub (unless a page map is used).
JSWolf is offline   Reply With Quote
Old 11-19-2020, 10:39 AM   #4
thiago.eec
Evangelist
thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.
 
Posts: 449
Karma: 155084
Join Date: Dec 2016
Location: Goiânia - Brazil
Device: iPad, Kindle Paperwhite
Quote:
Originally Posted by JSWolf View Post
How the pages are displayed depends on what program is being used. If you use RMSDK (ADE) then the page numbers will not change when you change the font size. But if you use Books then the page number will change with a font size change. ADE page numbers are the most accurate page numbers for ePub (unless a page map is used).
The OP expressly stated that iBooks was used:

Quote:
Originally Posted by larysa View Post
...read from ipad with ibooks...
iBooks recalculates the page count every time you change the font size. Also, using different screen sizes will affect it too.
thiago.eec is offline   Reply With Quote
Old 11-19-2020, 01:54 PM   #5
larysa
Zealot
larysa began at the beginning.
 
Posts: 110
Karma: 10
Join Date: Feb 2016
Device: iPad mini 4
i use calibre editor for so many years... on this ebook no error detected.
and thiago.eec you're right: if I change the font size the pages are detected, as it should be. no problem.
only problem (i don't understand why) on my default font dimension, set for each ebook, this count does not appear...! only at this specified font dimension and only with this ebook..!
larysa is offline   Reply With Quote
Advert
Old 11-19-2020, 03:14 PM   #6
larysa
Zealot
larysa began at the beginning.
 
Posts: 110
Karma: 10
Join Date: Feb 2016
Device: iPad mini 4
Quote:
Originally Posted by thiago.eec View Post
Also, using different screen sizes will affect it too.
on ipad different screen sizes??
larysa is offline   Reply With Quote
Old 11-19-2020, 03:34 PM   #7
DNSB
Bibliophagist
DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.DNSB ought to be getting tired of karma fortunes by now.
 
DNSB's Avatar
 
Posts: 8,957
Karma: 42445009
Join Date: Jul 2010
Location: Vancouver
Device: Kobo Forma, Clara HD, Nexus 7 HD, iPad Pro, Tolino epos
Quote:
Originally Posted by larysa View Post
on ipad different screen sizes??
Perhaps window size would have been a better choice of words unless you always read full screen.
DNSB is online now   Reply With Quote
Old 11-19-2020, 04:47 PM   #8
thiago.eec
Evangelist
thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.
 
Posts: 449
Karma: 155084
Join Date: Dec 2016
Location: Goiânia - Brazil
Device: iPad, Kindle Paperwhite
Quote:
Originally Posted by larysa View Post
on ipad different screen sizes??
I really meant screen sizes. There are various iPad models, and their screen size may vary. This is true for iBooks in general, as it is also present on iPhones.

But I agree, window sizes are more general, since iBooks can also be used on macOS.
thiago.eec is offline   Reply With Quote
Old 11-19-2020, 04:58 PM   #9
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 60,458
Karma: 64502597
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Aura H2O, PRS-650, PRS-T1, nook STR, iPad 4, iPhone SE 2020, PW3
Quote:
Originally Posted by larysa View Post
on ipad different screen sizes??
Yes, iPads do have different screen sized. 7.9", 9.7", 10.5" 11", and 12.9". All different screen sizes. And then there are different iPhone screen sizes.

So yes, page numbers for Books is a real mess.
JSWolf is offline   Reply With Quote
Old 11-19-2020, 05:00 PM   #10
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 60,458
Karma: 64502597
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Aura H2O, PRS-650, PRS-T1, nook STR, iPad 4, iPhone SE 2020, PW3
Quote:
Originally Posted by thiago.eec View Post
I really meant screen sizes. There are various iPad models, and their screen size may vary. This is true for iBooks in general, as it is also present on iPhones.

But I agree, window sizes are more general, since iBooks can also be used on macOS.
It's no longer called iBooks, It's called Books.
JSWolf is offline   Reply With Quote
Old 11-19-2020, 05:18 PM   #11
thiago.eec
Evangelist
thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.thiago.eec can grok the meaning of the universe.
 
Posts: 449
Karma: 155084
Join Date: Dec 2016
Location: Goiânia - Brazil
Device: iPad, Kindle Paperwhite
Quote:
Originally Posted by JSWolf View Post
It's no longer called iBooks, It's called Books.
Sorry. I didn't know that. My iPad is kind of old. It's been a long time since it was updated (so, the app here is still called iBooks).

I only use it for Children Books, to read to my son.
thiago.eec is offline   Reply With Quote
Old 11-19-2020, 05:23 PM   #12
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 60,458
Karma: 64502597
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Aura H2O, PRS-650, PRS-T1, nook STR, iPad 4, iPhone SE 2020, PW3
Quote:
Originally Posted by thiago.eec View Post
Sorry. I didn't know that. My iPad is kind of old. It's been a long time since it was updated (so, the app here is still called iBooks).

I only use it for Children Books, to read to my son.
I think when we refer to iBooks/Books, we should mention what OS the iPad is running so we know what's being used.
JSWolf is offline   Reply With Quote
Old 11-19-2020, 05:27 PM   #13
BetterRed
null operator
BetterRed ought to be getting tired of karma fortunes by now.BetterRed ought to be getting tired of karma fortunes by now.BetterRed ought to be getting tired of karma fortunes by now.BetterRed ought to be getting tired of karma fortunes by now.BetterRed ought to be getting tired of karma fortunes by now.BetterRed ought to be getting tired of karma fortunes by now.BetterRed ought to be getting tired of karma fortunes by now.BetterRed ought to be getting tired of karma fortunes by now.BetterRed ought to be getting tired of karma fortunes by now.BetterRed ought to be getting tired of karma fortunes by now.BetterRed ought to be getting tired of karma fortunes by now.
 
Posts: 16,729
Karma: 19705250
Join Date: Mar 2012
Location: Sydney Australia
Device: none
Quote:
Originally Posted by JSWolf View Post
I think when we refer to iBooks/Books, we should mention what OS the iPad is running so we know what's being used.
The number of iPads that don't run iOS would be iNfinitesimal

BR
BetterRed is offline   Reply With Quote
Old 11-19-2020, 05:30 PM   #14
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 60,458
Karma: 64502597
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Kobo Aura H2O, PRS-650, PRS-T1, nook STR, iPad 4, iPhone SE 2020, PW3
Quote:
Originally Posted by BetterRed View Post
The number of iPads that don't run iOS would be iNfinitesimal

BR
There are many iPads that don't run iOS. They run iPadOS.
JSWolf is offline   Reply With Quote
Old 11-20-2020, 03:49 AM   #15
larysa
Zealot
larysa began at the beginning.
 
Posts: 110
Karma: 10
Join Date: Feb 2016
Device: iPad mini 4
ok, that's all.
anyway it's really strange how only in this book, reading with my usual font (i change the font size from caliber editor, not from the Books app, here i always leave the same setting) the page count is not displayed. if i change the font size in Books it works, but with my usual font size, it doesn't work. really curious ...
larysa is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
pages number gianni_1 Viewer 3 11-16-2020 05:54 PM
Show number of pages in book - where? manawydan Viewer 2 08-06-2020 01:43 PM
Total number of pages xaim Marvin 5 11-17-2013 10:59 AM
Do the number of pages in an ebook differ from the number of pages in a physical book Phoebemy General Discussions 12 07-19-2012 10:25 AM
Conversion - Can you keep same number of pages goldberry Calibre 4 09-12-2010 01:11 AM


All times are GMT -4. The time now is 01:31 PM.


MobileRead.com is a privately owned, operated and funded community.