Font issues with Calibre

[ivanbayross]

I have been struggling with this issue for some time without success.

I need some help.

My source file is well formatted HTML.

My Style rules are in a file named template_css.css

No matter what style rules I write in my CSS file when Calibre coverts the HTML source to a MOBI output, apparently "Times New Roman" is the font used.

I've embedded my font ( Arial ) in the CSS file using:
@font-face {
font-family: "Arial";
font-weight: normal;
font-style: normal;
src: url(../Library/Fonts/arial.ttf);
}

I've verified that there is a folder named Library which contains a folder named Fonts, which holds the file arial.ttf in it.

When Calibre runs its - pre process - I can see that arial.ttf has been added to the zip file.

Yet when Calibre converts the HTML / CSS source to MOBI format and I check this on a Kindle application on:
My PC
My iPad

The only font I can see is "Times New Roman".

I'm totally foxed.

Any help will be appreciated.

Ivan Bayross

[cybmole]

is Ariel a public domain font ? - google says not - so that is probably your problem.
you can't embed a protected font & expect it to work on an e-reader.
It works on your PC only because microsoft allows it to.

[ivanbayross]

Hi cybmole,

Never ever thought of this as a problem.

Will search for public domain fonts ( free to use ) and will try that in Sigil / Calibre.

Any suggestions for public domain Serif font names that can be used on an e-reader without issues ?

[cybmole]

I've read that it can be an issue - try the sigil forum if you don't get an answer here - lots of e-reader font experts over there!

[ivanbayross]

Okay this time I made sure that I used a Public domain, no copyright issues, TTF font.

Embedded this in the CSS file, checked that HTML file was displayed correctly in five different Browsers. It did. Hence, I believe that the CSS code is correct.

Then I used this HTML file as an input to Calibre.

When I check the .zip file created by Calibre, just before conversion to MOBI format, I can - See - font has been embedded.

When I check the MOBI output produced Calibre has - apparently - delivered the same old Times New Roman font in the MOBI file output.

I'm reading the MOBI file output in:
Firefox using a FF plugin.
In a Windows Vista - Kindle reader App.
In a iPad - Kindle reader App.

Same old Time New Roman font.

I'm not trying to do anything very fancy. I just want a Sans Serif font to be used in the MOBI file as I think a Sans Serif font is easier to read on a 7inch or 10inch screen.

Any help will be appreciated.

[itimpi]

I am not sure that Calibre embeds any fonts, so you are constrained by what the reading device has. Rather than specify a specific font (or as well) you could specify the font type (e.g. Sans Serif) so that the reader device can do a better job of handling the fallback case of not having the required font available.

[kovidgoyal]

MOBI has no supprt for embedded fonts, you need to convert to azw3