Apostille vs. embassy legalisation — know which you need
An apostille is a single authentication stamp recognised between countries that are part of the Hague Apostille Convention. Embassy or consular legalisation is a longer chain — notarise, then authenticate domestically, then get the destination country's embassy to add its own stamp — used when the apostille alone isn't accepted.
China's own recognition of apostilles has been evolving, so what was true two years ago may not be true now. Confirm directly with the Chinese consulate handling your region, because requirements differ slightly by consulate district even within the same country.
