Problem converting O'Reilly ebook

xrxss15 · 02-03-2012, 06:26 AM

Hi,

I purchased a (DRM free) O'Reilly ePub ebook and loaded it to my PRS-T1. Unfortunately, they were using something like a 20pt font and I wasnt able to change the font size on device.

So I decided to convert the book with Calibre: epub to epub, input format default, output format Sony. And in fact, that solved the font problem. But now, if I am on the last page of a chapter, I am not able to advance to the next chapter (neither via touch screen nor buttons).

Does anyone know who to change the conversion parameters to fix that?

As a workaround I changed the CSS of the original ebook to use relative font sizes, but I really would like to know why the conversion failed.

Regards.

xrxss15 · 02-11-2012, 03:46 AM

Any idea how to fix the conversion?

theducks · 02-11-2012, 10:48 AM

Quote:

Originally Posted by xrxss15

Any idea how to fix the conversion?

The NCX play order is munged up

I don't know why or how that happened.
Looking at the original (tweak Epub to explode) and converted versions, with a simple TXT editor might give you a clue of what went south.

xrxss15 · 02-18-2012, 07:08 AM

Quote:

Originally Posted by theducks

The NCX play order is munged up

I looked into toc.ncx and didn't found a problem. 'playOrder' is starting form 0 instead from 1. The pages got 'OEBPS/' prepended. Otherwise it looks similar to the original.

Code:

<?xml version='1.0' encoding='utf-8'?>
<ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" version="2005-1" xml:lang="eng">
  <head>
    <meta content="402317b9-5850-4799-8854-5da2e78b0ebc" name="dtb:uid"/>
    <meta content="5" name="dtb:depth"/>
    <meta content="calibre (0.8.40)" name="dtb:generator"/>
    <meta content="0" name="dtb:totalPageCount"/>
    <meta content="0" name="dtb:maxPageNumber"/>
  </head>
  <docTitle>
    <text>JavaScript: The Good Parts</text>
  </docTitle>
  <navMap>
    <navPoint class="cover" id="cover" playOrder="0">
      <navLabel>
        <text>Cover Page</text>
      </navLabel>
      <content src="OEBPS/cover.html"/>
    </navPoint>
    <navPoint class="chapter" id="id2360691" playOrder="1">
      <navLabel>
        <text>JavaScript: The Good Parts</text>
      </navLabel>
      <content src="OEBPS/index.html"/>
      <navPoint class="chapter" id="id2260044" playOrder="2">
        <navLabel>
          <text>SPECIAL OFFER: Upgrade this ebook with O’Reilly</text>
        </navLabel>
        <content src="OEBPS/upgrade_offer_front.html"/>
      </navPoint>
      <navPoint class="chapter" id="id2440873" playOrder="3">
        <navLabel>
          <text>A Note Regarding Supplemental Files</text>
        </navLabel>
        <content src="OEBPS/examples_page.html"/>
      </navPoint>

theducks · 02-18-2012, 09:29 AM

Someone else pointed out my error in thinking that only the NCX controlled order.

in the content.opf the spine section comes into play

Code:

<spine toc="ncx">
        <itemref idref="titlepage.xhtml"/>
        <itemref idref="books.html"/>
        <itemref idref="copy.xhtml"/>
        <itemref idref="map1.xhtml"/>
        <itemref idref="map2.html"/>
        <itemref idref="map3.html"/>
        <itemref idref="pro.html"/>
        <itemref idref="p01.html"/>
        <itemref idref="c01.html"/>
</spine>

Validate the EPUB with Flightcrew (also part of Sigil). fix any syntax errors, then carefully adjust the spine order.

02-03-2012, 06:26 AM	#1
xrxss15 Junior Member Posts: 3 Karma: 10 Join Date: Feb 2012 Device: Sony PRS-T1	Problem converting O'Reilly ebook Hi, I purchased a (DRM free) O'Reilly ePub ebook and loaded it to my PRS-T1. Unfortunately, they were using something like a 20pt font and I wasnt able to change the font size on device. So I decided to convert the book with Calibre: epub to epub, input format default, output format Sony. And in fact, that solved the font problem. But now, if I am on the last page of a chapter, I am not able to advance to the next chapter (neither via touch screen nor buttons). Does anyone know who to change the conversion parameters to fix that? As a workaround I changed the CSS of the original ebook to use relative font sizes, but I really would like to know why the conversion failed. Regards.

02-18-2012, 09:29 AM	#5
theducks Well trained by Cats Posts: 29,754 Karma: 54401244 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	Someone else pointed out my error in thinking that only the NCX controlled order. in the content.opf the spine section comes into play Code: <spine toc="ncx"> <itemref idref="titlepage.xhtml"/> <itemref idref="books.html"/> <itemref idref="copy.xhtml"/> <itemref idref="map1.xhtml"/> <itemref idref="map2.html"/> <itemref idref="map3.html"/> <itemref idref="pro.html"/> <itemref idref="p01.html"/> <itemref idref="c01.html"/> </spine> Validate the EPUB with Flightcrew (also part of Sigil). fix any syntax errors, then carefully adjust the spine order.

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02-11-2012, 03:46 AM	#2
xrxss15 Junior Member Posts: 3 Karma: 10 Join Date: Feb 2012 Device: Sony PRS-T1	Any idea how to fix the conversion?