Question about empty page visible in Calibre

Marjelle · 05-12-2015, 08:35 AM

Hi everyone, I have no idea if I've put this question in the right topic.
I am Dutch, so English is not my mother tongue.

I have made an e-book about Rotterdam with Sigil and checked appearance / layout with the Calibre e-book management programme.
There is one problem: viewed in Calibre an empty page pops up after the page Cover and also an empty page appears before the Register, both pages are not available / not visible in Sigil.
Can anyone help me? Thanks in advance.

HarryT · 05-12-2015, 08:42 AM

Moved to the Calibre forum.

theducks · 05-12-2015, 11:23 AM

Quote:

Originally Posted by Marjelle

Hi everyone, I have no idea if I've put this question in the right topic.
I am Dutch, so English is not my mother tongue.

I have made an e-book about Rotterdam with Sigil and checked appearance / layout with the Calibre e-book management programme.
There is one problem: viewed in Calibre an empty page pops up after the page Cover and also an empty page appears before the Register, both pages are not available / not visible in Sigil.
Can anyone help me? Thanks in advance.

Empty pages can be caused by:
1) Explicit CSS coded instructions: page-break-* (applied in a place that is redundent: last block has a page break and you start a new file

)

2) a Block level 'overflow' condition. I avoid non-zero margin-bottom (body) Paragraphs for that reason. The last Paragraph may need a bottom margin, which happens to fall onto the next (as a blank) screen

3)Non-printing code block jest before the closing Body tag

Marjelle · 05-15-2015, 12:28 PM

Hi theDucks, thanks for your reply.
As I am a newbie this is way too technical for me.
So I'll see if I can find someone who does understand this and can advise me what to do.

eschwartz · 05-15-2015, 04:54 PM

Check your code for explicit page-break-* styles, and or empty paragraphs at the end of chapters (empty paragraphs still need to get rendered, but they render blank space.

)

Also might be helpful

: EPub_Tutorial

Marjelle · 05-18-2015, 10:04 AM

Thanks, Eschwartz, I will check for page-breaks.

Marjelle · 05-19-2015, 11:56 AM

I have deleted a page break but still the empty page exists.
Here is the code of the Cover page of my e-book after which an empty page occurs:

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
</head>

<body>
<p><img alt="Omslagfoto Euromast af-002" src="../Images/Omslagfoto%20Euromast%20af-002.jpg" /></p>
</body>
</html>

Does anyone know what the problem is here?

cybmole · 05-19-2015, 12:21 PM

Check code for next page in book, maybe that opens with some page break. Unlikely but possible. And check image dimensions.

chaley · 05-19-2015, 12:28 PM

Quote:

Originally Posted by Marjelle

<body>
<p><img alt="Omslagfoto Euromast af-002" src="../Images/Omslagfoto%20Euromast%20af-002.jpg" /></p>
</body>
</html>

Does anyone know what the problem is here?

Assuming that the rendering device is not doing something special, with that HTML there should be a single space output after the image. If the image consumes the entire screen then that space could appear on the next page.

The space is caused by the return between </p> and </body>. Does the problem happen if the HTML looks like the following?

Code:

...20af-002.jpg" /></p></body></html>

Marjelle · 05-19-2015, 12:46 PM

Hi cybmole, the image dimensions are 534x800 pxls.
I didn't see a break on the next page. This is part of the code on the top of the page:

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta content="Microsoft Word 15 (filtered)" name="Generator" />

<title></title>

<style type="text/css">

</style>
</head>

<body link="#0563C1" vlink="#954F72" xml:lang="NL">
<div class="WordSection1">
<p class="MsoNormal"><b><span style="font-size:22.0pt;line-height:107%">Rotterdam</span></b></p>

I also checked the page before the Register and there is no page break on that page, but still an empty page pops up before the register.
Anyone knows how that is possible?

Marjelle · 05-19-2015, 12:54 PM

Hi Chaley, I did exactly as you did and then saved the file and viewed with Calibre and still the empty page is there.
When you click on the file the code looks again the same as before:

...20af-002.jpg" /></p>
</body>
</html>

cybmole · 05-19-2015, 01:23 PM

1. can you view the book in any other software. to see what happens ?
e.g. Adobe Digital Editions

2. test also: replacing that image with a smaller one: take it out , make a backup, shrink it, put it back....

3. there is a lot of code in your book, because of converting it from word to epub. maybe clearing away some of that will help solve the problem also. I think if you back up you original then convert it twice: convert epub to mobi, followed by mobi to epub with calibre, it will remove all that is not essential. there may be other neater ways to achieve that, but that one will work.

theducks · 05-19-2015, 02:21 PM

<P> has (device/system) default margins
@page has margins

Your image is 800 high

IMHO Full Image size is not wanted for Full screen . Try 95%

cybmole · 05-19-2015, 02:27 PM

Quote:

Originally Posted by theducks

<P> has (device/system) default margins
@page has margins

Your image is 800 high

IMHO Full Image size is not wanted for Full screen . Try 95%

I did not know the coding for that, without googling, so I suggested shrinking the image instead, I don't think the OP has advanced epub coding skills.

I also had a vague memory that the calibre epub viewer was a continuous scroll, not page based, but I quick test show how much I know

I never use it as a reading tool, but does it default to some specific windows size - like maybe 800 pixels , which could explain things?

theducks · 05-19-2015, 02:34 PM

Quote:

Originally Posted by cybmole

I did not know the coding for that, without googling, so I suggested shrinking the image instead, I don't think the OP has advanced epub coding skills.

I also had a vague memory that the calibre epub viewer was a continuous scroll, not page based, but I quick test show how much I know

I never use it as a reading tool, but does it default to some specific windows size - like maybe 800 pixels , which could explain things?

The bare basics

those would be better in a specific class for Just those images, as the below affects all IMG

Code:

img {height: 95%:
width: 95%;
}

05-12-2015, 08:35 AM	#1
Marjelle Member Posts: 21 Karma: 10 Join Date: May 2015 Device: none	Question about empty page visible in Calibre Hi everyone, I have no idea if I've put this question in the right topic. I am Dutch, so English is not my mother tongue. I have made an e-book about Rotterdam with Sigil and checked appearance / layout with the Calibre e-book management programme. There is one problem: viewed in Calibre an empty page pops up after the page Cover and also an empty page appears before the Register, both pages are not available / not visible in Sigil. Can anyone help me? Thanks in advance.

05-19-2015, 11:56 AM	#7
Marjelle Member Posts: 21 Karma: 10 Join Date: May 2015 Device: none	Empty page, no page breaks found!? I have deleted a page break but still the empty page exists. Here is the code of the Cover page of my e-book after which an empty page occurs: <?xml version="1.0" encoding="utf-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title></title> </head> <body> <p><img alt="Omslagfoto Euromast af-002" src="../Images/Omslagfoto%20Euromast%20af-002.jpg" /></p> </body> </html> Does anyone know what the problem is here?

05-19-2015, 01:23 PM	#12
cybmole Wizard Posts: 3,720 Karma: 1759970 Join Date: Sep 2010 Device: none	1. can you view the book in any other software. to see what happens ? e.g. Adobe Digital Editions 2. test also: replacing that image with a smaller one: take it out , make a backup, shrink it, put it back.... 3. there is a lot of code in your book, because of converting it from word to epub. maybe clearing away some of that will help solve the problem also. I think if you back up you original then convert it twice: convert epub to mobi, followed by mobi to epub with calibre, it will remove all that is not essential. there may be other neater ways to achieve that, but that one will work. Last edited by cybmole; 05-19-2015 at 01:26 PM.

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05-12-2015, 08:42 AM	#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	Moved to the Calibre forum.

05-15-2015, 12:28 PM	#4
Marjelle Member Posts: 21 Karma: 10 Join Date: May 2015 Device: none	Hi theDucks, thanks for your reply. As I am a newbie this is way too technical for me. So I'll see if I can find someone who does understand this and can advise me what to do.

05-15-2015, 04:54 PM	#5
eschwartz Ex-Helpdesk Junkie Posts: 19,421 Karma: 85400180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	Check your code for explicit page-break-* styles, and or empty paragraphs at the end of chapters (empty paragraphs still need to get rendered, but they render blank space. ) Also might be helpful : EPub_Tutorial

05-18-2015, 10:04 AM	#6
Marjelle Member Posts: 21 Karma: 10 Join Date: May 2015 Device: none	Thanks, Eschwartz, I will check for page-breaks.

05-19-2015, 12:21 PM	#8
cybmole Wizard Posts: 3,720 Karma: 1759970 Join Date: Sep 2010 Device: none	Check code for next page in book, maybe that opens with some page break. Unlikely but possible. And check image dimensions.

05-19-2015, 12:46 PM	#10
Marjelle Member Posts: 21 Karma: 10 Join Date: May 2015 Device: none	Hi cybmole, the image dimensions are 534x800 pxls. I didn't see a break on the next page. This is part of the code on the top of the page: <?xml version="1.0" encoding="utf-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta content="Microsoft Word 15 (filtered)" name="Generator" /> <title></title> <style type="text/css"> <!-- /* Font Definitions / @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4;} / Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin-top:0cm; margin-right:0cm; margin-bottom:8.0pt; margin-left:0cm; line-height:107%; font-size:11.0pt; font-family:"Calibri",sans-serif;} a:link, span.MsoHyperlink {color:#0563C1; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {color:#954F72; text-decoration:underline;} .MsoChpDefault {font-family:"Calibri",sans-serif;} .MsoPapDefault {margin-bottom:8.0pt; line-height:107%;} @page WordSection1 {size:595.3pt 841.9pt; margin:70.85pt 70.85pt 70.85pt 70.85pt;} div.WordSection1 {page:WordSection1;} --> </style> </head> <body link="#0563C1" vlink="#954F72" xml:lang="NL"> <div class="WordSection1"> <p class="MsoNormal"><b><span style="font-size:22.0pt;line-height:107%">Rotterdam</span></b></p> I also checked the page before the Register and there is no page break on that page, but still an empty page pops up before the register. Anyone knows how that is possible?

05-19-2015, 12:54 PM	#11
Marjelle Member Posts: 21 Karma: 10 Join Date: May 2015 Device: none	Hi Chaley, I did exactly as you did and then saved the file and viewed with Calibre and still the empty page is there. When you click on the file the code looks again the same as before: ...20af-002.jpg" /></p> </body> </html>

05-19-2015, 02:21 PM	#13
theducks Well trained by Cats Posts: 31,048 Karma: 60358908 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	<P> has (device/system) default margins @page has margins Your image is 800 high IMHO Full Image size is not wanted for Full screen . Try 95%

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