This is what I've used before:
<fo:block font-family="Tahoma">Text</fo:block>
How can I specify that "Tahoma" is the font-family for the entire document?
I am looking for an equivalent of CSS's
body {
font-family: "Tahoma";
}
If you want to set default font for whole document you can set it in fo:root. It should get inherited by every child-node without specified font-family.
<fo:root font-family="Tahoma">
<!-- rest of document -->
</fo:root>