About subsets

roger64 · 10-20-2017, 12:48 PM

Hi

The Calibre editor produces nicely subsets of embedded fonts. On average, one EPUB in French language is made from, say 120 to 130 different characters. We can find the total list of all these characters using the tab "characters" in the lower line of the report tool of the Editor.

I embed usually the Linux Libertine font. Each variant, regular, italic, bold has a size of about 800 k. The Calibre editor reduces them for one test book respectively to 166k, 129k and 77k. This seems understandable because there are much more regular characters used than italic and bold ones. Hence, I suppose that the Calibre editor makes use of a reduced sublist of italic and bold characters.

My question is the following: where -or how- can I display (and copy) the list of the different italic and bold characters?

kovidgoyal · 10-20-2017, 12:58 PM

THere is no report for that. I suppose you can simply open the italic/bold font files in a tool like fontforge and see what glyphs are left.

phossler · 10-20-2017, 01:05 PM

If it's Windows, I like BabelMap from

http://www.babelstone.co.uk/Software/BabelMap.html

roger64 · 10-21-2017, 02:22 AM

Thank you for your replies.

I had thought that during the subset creation process, the Calibre editor made use of specific lists of italic and bold characters.

I'll look elsewhere.

Divingduck · 10-23-2017, 04:27 AM

An other nice (and free) tool is called Inside font: http://www.insidefont.de/en/index.html.

10-20-2017, 12:48 PM	#1
roger64 Wizard Posts: 2,608 Karma: 3000161 Join Date: Jan 2009 Device: Kindle PW3 (wifi)	About subsets Hi The Calibre editor produces nicely subsets of embedded fonts. On average, one EPUB in French language is made from, say 120 to 130 different characters. We can find the total list of all these characters using the tab "characters" in the lower line of the report tool of the Editor. I embed usually the Linux Libertine font. Each variant, regular, italic, bold has a size of about 800 k. The Calibre editor reduces them for one test book respectively to 166k, 129k and 77k. This seems understandable because there are much more regular characters used than italic and bold ones. Hence, I suppose that the Calibre editor makes use of a reduced sublist of italic and bold characters. My question is the following: where -or how- can I display (and copy) the list of the different italic and bold characters? Last edited by roger64; 10-20-2017 at 12:57 PM.

10-20-2017, 12:58 PM	#2
kovidgoyal creator of calibre Posts: 43,858 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	THere is no report for that. I suppose you can simply open the italic/bold font files in a tool like fontforge and see what glyphs are left.

10-20-2017, 01:05 PM	#3
phossler Wizard Posts: 1,071 Karma: 412718 Join Date: Jan 2009 Location: Valley Forge, PA, USA Device: Kindle Paperwhite	If it's Windows, I like BabelMap from http://www.babelstone.co.uk/Software/BabelMap.html

10-21-2017, 02:22 AM	#4
roger64 Wizard Posts: 2,608 Karma: 3000161 Join Date: Jan 2009 Device: Kindle PW3 (wifi)	Thank you for your replies. I had thought that during the subset creation process, the Calibre editor made use of specific lists of italic and bold characters. I'll look elsewhere.

10-23-2017, 04:27 AM	#5
Divingduck Wizard Posts: 1,161 Karma: 1404241 Join Date: Nov 2010 Location: Germany Device: Sony PRS-650	An other nice (and free) tool is called Inside font: http://www.insidefont.de/en/index.html.

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