differences.set(0374 + 1, COSName.getPDFName("udieresis"));
differences.set(0304 + 1, COSName.getPDFName("Adieresis"));
differences.set(0326 + 1, COSName.getPDFName("Odieresis"));
differences.set(0334 + 1, COSName.getPDFName("Udieresis"));
return new DictionaryEncoding(COSName.STANDARD_ENCODING, differences);
}