How do I change the font size when exporting to HTML and PDF? I find the headers are too large.

Currently, there aren’t any available export options, ex for font size.

For HTML, you can either edit the exported CSS to reduce the heading font size, or you can use the unstyled HTML export and add your own CSS to adjust those kinds of things. I’m planning on adding some more options to this in the future, but I don’t have a solid plan for customization.