New answers tagged copyright
1
Adding to John's answer, which has all the important info about the three categories you mention.
You wonder about Creative Commons. They are a set of copyright licenses (not an alternative to copyright, they work alongside it). The 'advantage', so to say, is you can choose your copyright terms to best suit your needs.
Some of the most used CC licenses ...
2
I think there are no situations where the terms are simply synonyms for each other. It is a complicated matter indeed.
Here are simplified definitions:
Public Domain: no restrictions, no copyright claim (not possible in some countries).
Creative Commons: work may be used but in compliance with the stated restrictions.
Royalty Free: you buy a license once ...
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