Do you know the whole story? PDF has not been created by users, but by a company. Only now we have seen it changing into an ISO standard. (Originally, Adobe o

Do you know the whole story? PDF has not been created by users, but by a company. Only now we have seen it changing into an ISO standard. (Originally, Adobe only wanted to see it universally used to sell their PDF writers: please read for free, and please please pay for writing it. Only that it didn't happen this way.)