pub fn subset(font: &EmbeddedFont, gids: &[u16]) -> Result<Vec<u8>, SubsetError>Expand description
Subset font to just the glyph IDs in gids (always include GID 0,
.notdef, which the PDF spec mandates). Returns the trimmed TTF
bytes suitable for embedding as a /FontFile2 stream.
§Errors
Returns an error if the font’s tables are malformed or use features
the underlying [subsetter] crate doesn’t support (CFF2). The
bundled Noto Sans cuts are TrueType-flavoured and exercise the
well-supported path.