Epub to images (png)

[conversionerror]

HI

I cannot convert epub with fixed layout.

Therefore, I'd like to know is there is some plugin to convert into images that keep the flow of text seen in the reader?

Or maybe I could use a virtual printer? I've tried but it failed "for memory error" :

https://justpaste.it/dq2y9

Can't Calibre print batches of specific "pages" as rendered in the reader?

Thnx!

[Quoth]

Fixed Layout epub3 are worse than PDF. My solution is to never get them.
PDFs pretty much can't be easily converted to anything else either.

Calibre is for reflowable ebooks (real ebooks) though has some PDF support.

[conversionerror]

Originally Posted by Quoth

Calibre is for reflowable ebooks (real ebooks) though has some PDF support.

64-bit version (W7) won't convert, and it won't print to pdf either.

BTW, can't calibre convert to images?

[tomsem]

Originally Posted by conversionerror

HI

I cannot convert epub with fixed layout.

Therefore, I'd like to know is there is some plugin to convert into images that keep the flow of text seen in the reader?

Or maybe I could use a virtual printer? I've tried but it failed "for memory error" :

https://justpaste.it/dq2y9

Can't Calibre print batches of specific "pages" as rendered in the reader?

Thnx!

if you just want to convert to a set of images, you can screen capture the pages and make a CBZ or PDF or whatever, but what would that achieve, or let you do that you can't do with the (FXL) ePub?

In other words, what are your 'use cases'?

[conversionerror]

Originally Posted by tomsem

if you just want to convert to a set of images, you can screen capture the pages

Additionally, Calibre's viewer stays in a small size regardless of any configurations of width, so I cannot screenshot page by page at that miniscule size.

Adobe Digital Editions and Calibre might allow connection to android readers: then I'd digitize it by screenshots on my phone and, finally, OCR it with Abby Finereader.

Shoud I report the issue here asap? https://bugs.launchpad.net/calibre.
❤❤❤

[DNSB]

Originally Posted by conversionerror

Additionally, Calibre's viewer stays in a small size regardless of any configurations of width, so I cannot screenshot page by page at that miniscule size.

Adobe Digital Editions and Calibre might allow connection to android readers: then I'd digitize it by screenshots on my phone and, finally, OCR it with Abby Finereader.

Shoud I report the issue here asap? https://bugs.launchpad.net/calibre.
❤❤❤

You could try Thorium reader since it does handle FLO ePubs.

As for reporting the bug? Since the creator of calibre is well aware that it does not handle fixed layout ebooks, a bug report is not going to help. Contributing code to calibre to allow handling fixed layout ebooks would be helpful.

[tomsem]

Originally Posted by conversionerror

Additionally, Calibre's viewer stays in a small size regardless of any configurations of width, so I cannot screenshot page by page at that miniscule size.

Adobe Digital Editions and Calibre might allow connection to android readers: then I'd digitize it by screenshots on my phone and, finally, OCR it with Abby Finereader.

Shoud I report the issue here asap? https://bugs.launchpad.net/calibre.
❤❤❤

Well even easier than screenshots (should have mentioned this first), is to export the images using calibre's Edit Book: find Images folder in listing on left, right click and Select all Images files, then right click on the selection and Export all nnn files.

In my experience, usually the text is rendered in the images while XHTML gives position and actual text values for readers that let you select it (like Thorium reader). It is similar to PDFs in that respect, where text can be rendered with vector graphics and text objects are there to provide locations for highlights and dictionary lookup, etc.

So similar that I want to investigate writing a script to convert between FXL ePub and PDF. At least PDF is more popular and better supported, and there might be other cases where FXL ePub might be preferred.

[DNSB]

Originally Posted by tomsem

Well even easier than screenshots (should have mentioned this first), is to export the images using calibre's Edit Book: find Images folder in listing on left, right click and Select all Images files, then right click on the selection and Export all nnn files.

In my experience, usually the text is rendered in the images while XHTML gives position and actual text values for readers that let you select it (like Thorium reader). It is similar to PDFs in that respect, where text can be rendered with vector graphics and text objects are there to provide locations for highlights and dictionary lookup, etc.

So similar that I want to investigate writing a script to convert between FXL ePub and PDF. At least PDF is more popular and better supported, and there might be other cases where FXL ePub might be preferred.

Sorry but you are rather wrong. A fixed layout ePub is not image based. Here's an example of the code for a single sentence from the FLO ePub:

<div class="liw c1D7 c7" style="font-size:0;top:386px;min-width:418px;line-height:31px;z-index:292">
<span class="w c1A4 f1" style="width:63px"><span class="c1A4 c118 c c1C"> H</span><span class="c1A4 c119"><span class="c c1A4 c1F">A</span><span class="c c1A4 c16">R</span><span class="c c1A4 c163">R</span><span class="c c1A4 cD">Y </span></span></span><span class="w c1A4 f1" style="width:77px"><span class="c1A4 c118 c c33">P</span><span class="c1A4 c119"><span class="c c1A4 c32">O</span><span class="c c1A4 c1F">T</span><span class="c c1A4 c32">T</span><span class="c c1A4 c16">E</span><span class="c c1A4 cD">R </span></span></span><span class="w c116 c11A c1A4 f1 c119"><span class="c c1A4 c32">A</span><span class="c c1A4 c33">N</span><span class="c c1A4 cD">D </span></span><span class="w c11A c1A4 f1 c119" style="width:40px"><span class="c c1A4 c32">T</span><span class="c c1A4 c32">H</span><span class="c c1A4 cD">E </span></span><span class="w c1A4 f1" style="width:133px"><span class="c1A4 c118 c c33">P</span><span class="c1A4 c119"><span class="c c1A4 c32">H</span><span class="c c1A4" style="width:6px">I</span><span class="c c1A4 c2A">L</span><span class="c c1A4 c32">O</span><span class="c c1A4 c163">S</span><span class="c c1A4 c1F">O</span><span class="c c1A4 c163">P</span><span class="c c1A4 c32">H</span><span class="c c1A4 c16">E</span><span class="c c1A4 c32">R</span></span><span class="c1A4 c118 c" style="width:5px">'</span><span class="c1A4 c119 c cD">S </span></span><span class="w c1A4 f1" style="width:59px"><span class="c1A4 c118 c c32">S</span><span class="c1A4 c119"><span class="c c1A4 c1F">T</span><span class="c c1A4 c1F">O</span><span class="c c1A4 c33">N</span><span class="c c1A4 cD">E </span></span></span>
</div>

As can be seen, pretty much every bleeping letter given an absolute position on the page just to spell " HARRY POTTER AND THE PHILOSOPHER'S STONE ". This FLO ePub has 50 embedded fonts and 215 background images. Each page is rendered in a viewport that is 1216 by 1849 pixels.

[conversionerror]

Originally Posted by DNSB

You could try Thorium reader since it does handle FLO ePubs.

Hi

I am on Windows 7, and apparently Thorium is only for W10 and above; any alternatives?

Can't find any info about it allowing printing options for nonDRM epubs either...

Having a portable version to test it would be awesome.

[JSWolf]

Originally Posted by conversionerror

Hi

I am on Windows 7, and apparently Thorium is only for W10 and above; any alternatives?

Can't find info about it allowing printing options for nonDRM epubs either...

Having a portable version to test it would be awesome.

Would your computer allow you to upgrade to Windows 10 64-bit?

[BetterRed]

Originally Posted by conversionerror

Hi

I am on Windows 7, and apparently Thorium is only for W10 and above; any alternatives?

Maybe AZARDI ==>> http://azardi.infogridpacific.com/

BR

[tomsem]

Originally Posted by DNSB

Sorry but you are rather wrong. A fixed layout ePub is not image based. Here's an example of the code for a single sentence from the FLO ePub:



As can be seen, pretty much every bleeping letter given an absolute position on the page just to spell " HARRY POTTER AND THE PHILOSOPHER'S STONE ". This FLO ePub has 50 embedded fonts and 215 background images. Each page is rendered in a viewport that is 1216 by 1849 pixels.

That's very much what I'm seeing. Perhaps I didn't explain it well enough.