How to embed fonts in ePub after Calibre

[JSWolf]

I just ran epubcheck on one of the edited ePub files and it did not have any issue with mimetype.

[padman]

Does the compression have to be zip? What if I use another software – eg. 7-zip? And what software do you use for compression on mac?

[pdurrant]

Any zip program that produces a valid zip file should be fine - provided it doesn't add extraneous stuff between filename and file contents.

On the Mac I use the built-in zip command, controlled with an AppleScript to make it a drag&drop operation.

Originally Posted by padman

Does the compression have to be zip? What if I use another software – eg. 7-zip? And what software do you use for compression on mac?

[charleski]

Originally Posted by JSWolf

What I do is unzip the ePub, and then make the changes and put back just the files that I've changed. Works quite easily.

I use WinRAR, with the external editor set to Notepad++ in the options. This allows me to open an epub in WinRAR, click on a file and have it open in Notepad++. When I save the file after editing, WinRAR automatically asks if I want to insert the changed version back into the archive. This way all the zipping and unzipping is handled behind the scenes.

[Lloyd Simcoe]

Originally Posted by charleski

I use WinRAR, with the external editor set to Notepad++ in the options. This allows me to open an epub in WinRAR, click on a file and have it open in Notepad++. When I save the file after editing, WinRAR automatically asks if I want to insert the changed version back into the archive. This way all the zipping and unzipping is handled behind the scenes.

Thanks for the tip. I gave it a go and it worked nicely.

[JSWolf]

Originally Posted by charleski

I use WinRAR, with the external editor set to Notepad++ in the options. This allows me to open an epub in WinRAR, click on a file and have it open in Notepad++. When I save the file after editing, WinRAR automatically asks if I want to insert the changed version back into the archive. This way all the zipping and unzipping is handled behind the scenes.

I do the exact same thing with WinRAR and Notepad++. Works very well and is a very easy setup.

[teodorp]

Any chance for *.bat file which will make all this quckly?

[P.T]

I created a simple plugin for Calibre that embeds fonts into epub as a part of the conversion process.

Any feedback is welcome.

[brewt]

Originally Posted by P.T

I created a simple plugin for Calibre that embeds fonts into epub as a part of the conversion process.

Any feedback is welcome.

Apparently, my plugin adding/using ability is lacking.

er, how to use? I can get the epub built with what looks like the font embedded in the file, but it sure don't look like it in the viewers I have (calibre and ade[attached]).

-bjc

[kovidgoyal]

@PT: You can find the font file path like this

font_dir = P('fonts/liberation')

This is guaranteed to work on all platforms. It will give you the platform dependent location of the directory containing the liberation fonts.

[padman]

Originally Posted by P.T

I created a simple plugin for Calibre that embeds fonts into epub as a part of the conversion process.

Any feedback is welcome.

I have added the plugin to Calibre, but apparently I do not know how to activate it. Generated ePUBs are still without fonts. Any hint how to use this plugin?

[brewt]

Originally Posted by padman

I have added the plugin to Calibre, but apparently I do not know how to activate it. Generated ePUBs are still without fonts. Any hint how to use this plugin?

The plugin seems to be built for Liberation Fonts - if you have them in C:\Program Files\Calibre2\resources\fonts\liberation, and then open the epub as zip, you should see those in it.

I just can't figure out how to call them in my css/xhtml to make it work.

This is a grand idea - any chance of getting a) some more guidance, and b) the encryption scripts in it too?

-bjc

[charleski]

Ok, I took a look at the css in the epub you posted. I don't use Calibre to produce ePubs (apart from a few very rough conversions), so I can't help you with that, but I can point out why you aren't seeing the fonts.

Firstly, the ePub has only got Liberation Serif embedded in it, so you aren't going to see the sans font at all, this may be an issue with how you've configured this plugin.
Secondly, the css code for the fonts is mangled. I don't know if this is an issue with the plugin code, but that seems a possibility.

Here are the edits I needed to make to get Liberation Serif to show up in the viewer:
Original:

@font-face {font-style: normal;font-family: 'Liberation', serif, sans-serif;font-weight: normal;src: url(LiberationSerif-Regular.ttf);}

Modified:

@font-face {font-style: normal;font-family: "Liberation Serif";font-weight: normal;src: url(LiberationSerif-Regular.ttf);}

1) The font is referred to as "Liberation Serif" in the class definition, but is called 'Liberation' in the @font-face definition. The font-face defn. needed to be changed to Liberation Serif.
2) The font name is surrounded by single quotes in the font-face defn. These needed to be changed to double quotes.
3) I'm at a loss as to what the ancillary names are doing in the font-face definition ('Liberation', serif, sans-serif). These needed to be deleted.
All three changes had to be made for the font to show up correctly.

I'd suspect this is an issue with the plugin code needing to be tweaked a bit.

[JaneFancher]

This is exactly what I was looking for.

Thanks so much!

[frabjous]

Originally Posted by fiery

@font-face {
font-style: italic;
font-family: 'Liberation', serif, sans-serif;
font-weight: normal;
src: url(LiberationSerif-Italic.ttf);
}
@font-face {
font-style: normal;
font-family: 'Liberation', serif, sans-serif;
font-weight: normal;
src: url(LiberationSerif-Regular.ttf);
}
@font-face {
font-style: italic;
font-family: 'Liberation', serif, sans-serif;
font-weight: bold;
src: url(LiberationSerif-BoldItalic.ttf);
}
@font-face {
font-style: normal;
font-family: 'Liberation', serif, sans-serif;
font-weight: bold;
src: url(LiberationSerif-Bold.ttf);
}

I don't really understand putting multiple family names in the @font-face declaration. This makes sense when you're using the fonts: you want a stack so that it moves down to a fallback if need be, but in the font-face, all this can do is screw up the fallbacks, right?

In any case, it appears that calibre's own viewer does not support multiple font weights/styles defined for the same family, which is rather obnoxious. At least others seem to.

(P.S. Hmm. Now I'm not entirely sure about this. I need to investigate something.)