Fix ugly Calibri, Cambria font rendering on Linux

fonts.conf

<!-- Add this to your font configuration e.g ~/.config/fontconfig/fonts.conf -->
<!-- Note that this will disable all embedded bitmaps in fonts that use them -->
<!-- disable embedded bitmaps in fonts to fix Calibri, Cambria, etc. -->
<match target="font">
        <edit mode="assign" name="embeddedbitmap"><bool>false</bool></edit>
</match>

This is before the change using the following text

This is a test on calibri that is rendering with size 12pt on a 1920x1080 screen using "Calibri". Some things like doubt t (tt) look terrible. Hinting is also completely broken making it difficult to read text:
The lazy dog jumped over the crazy fox

This is a test on calibri that is rendering with size 12pt on a 1920x1080 screen using "Calibri". Some things look terrible like f i (fi) and ( ). Hinting is also completely broken making it difficult to read text:
The lazy dog jumped over the crazy fox

However Linux native fonts look a lot better and is rendered correctly, tt, fi ()
The lazy dog jumped over the crazy fox

Before

Note that the second test is cambra not calibri

After

Note that the second test is cambra not calibri

Before & After in single image

Thanks for sharing this fix!

However printing PDFs, does not print Ligatures:

Scanned printed PDF:

Instead of orignial PDF:

Did not know that font rendering could affect printing. Perhaps it depends on the printer.