EPUB output

[kovidgoyal]

@Oldpilot: <mbpagebreak> is kindle specific. The correct way to specify page breaks in html is

<div style="page-break-after:always"></div>

You should also read the conversion section of the calibre user manual to learn how to control where calibre puts its automatic pagebreaks.

@wn0x: If your input document contains font families they will be in the output stylesheet as well, unless what you put into extra css overrides them. In that case, Tweak epub is the way to go.

[wn0x]

Thanks Kovid. I noticed that if I re-converted the the file to epub any changes I made to stylesheet.css were lost, so that makes sense. I will have to "explode" and modify the input epub files if I don't want to mess with that again.

I can override epub styles on the PRS505 as I am running prs+ which is an awesome feature.

I am hoping that future versions of the PRS-950 allow for a different default font, or that a font replacement hack becomes available for the reader.

Rich

[ThePage]

Originally Posted by nikkie

I also found this problem in a lot of my books. When I opened them up in plain text editors, they had newlines at the end of every physical line break to control the width of the text.

Here is what I did to solve this problem when the file was rtf or something I could physically edit:

Because I was working with these books in windows instead of on linux, I wanted a solution that would work in windows. So I tested a few things in Word and found a solution that mostly worked, and then recorded it as a macro.

In cases where there is a paragraph break, you always have two new lines. In cases where it is inappropriately breaking at the end of the physical width of the screen, there's always one. So, what I did is I did a Find/Replace for any two line breaks (^p^p) in word, and replaced them with another special character not in the file. Then I did a find replace for the single line breaks (^p) and replaced them with a single space. The I found and replaced the special character I had replaced the double breaks with again a double line break. (Or you can use a paragraph, whatever you want.)

Now, every time I find an RTF book that has this problem, I open it in Word real quick, run my macro, and save. Then I convert in calibre. Works perfectly.

You might want to offer the macro for others to use - if you haven't already!

[ThePage]

Repeating myself - you might want to offer (both) macro's for others to use - if you haven't already!

[SilvioTO]

Hi all, I registered now on the forum...
I trying Calibre and I have a very good impression of it! I made a document with Open Office and save as html for convert it to an epub file. The conversion of text (with the default options) went fine, but the images don't maintain proportions. To do this I need to use Sigil end edit manually the code.

Here's a simply option in Calibre for maintain proportions of the included images?

Thanks for your help,
Silvio.

[DoctorOhh]

Originally Posted by SilvioTO

I trying Calibre and I have a very good impression of it! I made a document with Open Office and save as html for convert it to an epub file.

I can't answer your question, but I might have an alternative that will help you. There is a writer2epub extension for Open Office that allows you to save your document as a epub. The creator has a sticky thread to ask questions about it here at the epub forum of mobileread.

Another possibility is to save the document as an ODT file and try converting that with calibre and see if you have the same problem.

Good Luck.

[jackie_w]

Originally Posted by SilvioTO

Here's a simply option in Calibre for maintain proportions of the included images?

I'm not sure whether I fully understand your question, but if I'm using HTML as my source then I hand-edit the HTML in a text editor before importing to Calibre, so that each image is simplified to look something like:

<p><img src="images/mypic.jpg" alt="mypic" /></p>

i.e. I remove any height=xxx or width=yyy dimensions. Calibre then seems to handle image sizes automatically. It will also rescale them proportionally during the ZIP to EPUB conversion, if the original size would be too big to fit on your reader (as specified in Convert - PageSetup - OutputProfile).

There may be better ways, but this works for me.

[DoctorOhh]

Originally Posted by jackie_w

I remove any height=xxx or width=yyy dimensions. Calibre then seems to handle image sizes automatically. It will also rescale them proportionally during the ZIP to EPUB conversion, if the original size would be too big to fit on your reader (as specified in Convert - PageSetup - OutputProfile).

Good advice!

[SilvioTO]

I'm not sure whether I fully understand your question

I'm refer to aspect ratio of the images. If you try to open my epub in attach and change the dimension of the window of your reader, you will see that the images are stretched, don't maintain the original aspect ratio.
In a future version of Calibre I hope that an option are added to maintain aspect ratio of images and, maybe, center in the text.
Thanks all for advices.

[DoctorOhh]

[QUOTE=SilvioTO;1227385]I'm refer to aspect ratio of the images. If you try to open my epub in attach and change the dimension of the window of your reader, you will see that the images are stretched, don't maintain the original aspect ratio.

My PRS-505 or Kindle don't have expandable windows so the images are converted fine for these and other fixed sized devices.

Originally Posted by SilvioTO

In a future version of Calibre I hope that an option are added to maintain aspect ratio of images

Calibre does this now during conversion for whatever ereader you have it set for. But since you're using the built in reader if you set the calibre reader large enough you won't have a problem with images or if you go into the readers preferences you can turn off image resizing all together. If the images are too big they will just be too big until you expand the window.

That said I'm surprised the window resizing doesn't maintain aspect ratio.

[theducks]

[QUOTE=dwanthny;1227410]

Originally Posted by SilvioTO

I'm refer to aspect ratio of the images. If you try to open my epub in attach and change the dimension of the window of your reader, you will see that the images are stretched, don't maintain the original aspect ratio.

My PRS-505 or Kindle don't have expandable windows so the images are converted fine for these and other fixed sized devices.



Calibre does this now during conversion for whatever ereader you have it set for. But since you're using the built in reader if you set the calibre reader large enough you won't have a problem with images or if you go into the readers preferences you can turn off image resizing all together. If the images are too big they will just be too big until you expand the window.

That said I'm surprised the window resizing doesn't maintain aspect ratio.

For a time there (I only fixed, 1 or 2 converts), Calibre wrapped covers in SVG tags and did not specify "maintain_aspect_ratio" for size = "Stretch-o-Vision" (Can you tell I am a Letterbox video Purist ) covers on my PEz.

[kovidgoyal]

Umm aspect ratio is only not preserved for covers and there is an option under EPUB Output to control that.

[theducks]

Originally Posted by kovidgoyal

Umm aspect ratio is only not preserved for covers and there is an option under EPUB Output to control that.

I may have found that option along the way and changed the setting to make it permanent.

Keeping up with all the changes in Calibre can be such a pain
Hit me again

[DoctorOhh]

Originally Posted by kovidgoyal

Umm aspect ratio is only not preserved for covers and there is an option under EPUB Output to control that.

The OP is talking about the resizing of the window of calibre's reader. As you resize the reader's window calibre does not maintain aspect ratio.

[kovidgoyal]

Yeah, that's a side effect of the way max-width is implemented in webkit. Simply turn off the option to fit images to the viewer window if it bothers you.