I'm creating a project homepage on the service provider ourproject.org, and I can do so if my work will be licensed under the Creative Commons Attribution Share-Alike license:
I'm also adding a waiver to it that it will be in the public domain from a specific date. (Well, I don't call it waiver but what I write is written.)
Now I'm getting uncertain if I can put there everything I wanted.
1.) For example, I've downloaded a public domain font from here:
And I created a derivative font from it, and I don't know if I can put the derivative font to the website. What happens if the original website for the ancestor font goes off the internet and it turns out that it is copyrighted in fact and have an ancestor font as well? So it's possible that I will have to create a brand new public domain font because of this uncertainty. Note that I don't want legal complications even if I am right.
But I write now for another reasons.
2.) Can I make a PDF file public domain if its underlying fonts are in the public domain? Because I think PDF is not a free file format. I want to provide something in the homepage which can be printed by anyone, and looks the same. Will I have to use images for it?
3.) Can I include ANY website URLs as links? Because I have seen a website which told that it shall only be linked in a specific format. What happens if they will decide to do so without my knowledge? Of course, I will not use link collection websites where the link collection itself is a spiritual work, I will use only individual links which I collected during some years of my browsing (and maybe users can enter new links too in the future). Anyway, are link URLs in the public domain?
4.) Can I mention the names of supermarkets SPAR, TESCO, etc. there, with some - maybe positive, maybe negative - information about their wastage of advertising magazines? In 2009, they allowed me to put that on my own Hungarian website, and to an environmentalist website as well, but that was not about licensing this work of mine for everyone. I want to provide a link to SPAR's statement to the press too about SPAR decreasing the amount of advertising magazines (and this link will be public domain together with my website).
5.) Plus: I have even written some articles to a website and at the bottom of these articles were that they are in the public domain, while at the bottom of the big website itself was that it is copyrighted and all rights reserved. I have even written an email to the site boss of that website, to reply to all and tell the other website (ourproject.org) that he agrees that my works are in the public domain - he wrote back and agreed. Is this enough?
6.) Why cannot we copyright something to the public domain?
This is a combined post about copyright law, licensing and others.