*/
public byte[] getRawFontFile(final FontUse4a fontUse)
throws IOException {
final Subset subset = fontUse.getSubset();
if (subset != null) {
final TTFSubSetFile ttfSubset = new TTFSubSetFile(this.ttf, subset);
return ttfSubset.buildEmbeddableSubset();
}
final InputStream instream = getFontInputStream();
return IOUtil.toByteArray(instream, FSTrueTypeFont.EXPECTED_FILE_SIZE);
}