In our publications we use the "EB Garamond" font from Google Fonts. In the PDF, when the font is set to bold, all characters are doubled and the doubled character has a tiny offset to the right (see picture). This only happens in the PDF. The HTML in Firefox and Chromium looks fine.



The CSS I used in the example shown in the picture is this one:

h1 {
    font-size: 14pt;
    text-align: left;
    font-weight: bold;
    margin-top: 25pt;
    margin-bottom: 4pt;
    hyphens: none;
    break-before: left;
    string-set: chapter content();
}

1. doehmer_prince_fett_gespiegelt.jpg‎ 99.8 kB

This indicates that Prince cannot find a bold font for this family and is attempting to synthesise one. What URL are you providing to access the font?

Thanks for pushing me into the right direction. I just presumed that prince uses my locally installed font but ,without noticing, left an @import statement at some place that imported EB Garamond from a Google url without including the bold font.

Not it is working.