Thanks, Figleaf, there is a lot of useful information there. And I'm sure there will be even more with the help of other members.
As suggested, we are talking about copyright free documents that we want to upload to WoC server. For that matter, send a private message to me specifying how many files they are, and what size. If they are not too big, I will give you an E-mail address and I will upload them for you. For more than, let's say, 10Mb we will try a workaround so that you can upload them yourselves.