PDF was not blocked until recently when Xinjiang issue became blown out of control here. 99% global sites are not blocked in China, China only blocked ****, radical and extremist sites stirring trouble and disturbance around the world, China blocked some major US sites and social media platform which are regularly used against China, they all have a shameful track record of inciting riots, communal violence and even civil wars in different parts of the world, those platforms are filled with lies and hate messages and now so other countries are following China to ban them, if they don't change this wicked behavior, they will see more bans from more countries.