I’m using the Java version of Groupdocs.Viewer in a unix (Centos) environment.
I’m noticing that on a bare Centos install with no fonts installed that calls to ViewerHtmlHandler::getPages() will throw an error stating that no fonts are installed the first time that method is called, and will block on all future calls to that method (very frustrating, hard to debug behavior).
I’ve remedied on Centos 7 by installing the font subsystem via ‘yum install -y fontconfig’. This installs a single font package (stix-fonts).
I haven’t noticed any particular quality issues regarding fonts, but this could be due to limited testing I’ve done so far.
- Is Groupdocs.Viewer actually using the installed system fonts (perhaps for calculating character-width?) when generating HTML?
- Is there a way to use the document->HTML conversion features without having system fonts/font-subsystem installed?
- Is system fonts are needed, are there a set of fonts that are recommended to be installed?