45
votes
Accepted
Relicensing content under CC-BY-SA
I don't think so, no. CC-BY-SA 3.0 allows in s4 that
You may Distribute or Publicly Perform the Work only under the terms of this License ... This Section ... applies to the Work as incorporated ...
- 47k
29
votes
Accepted
Changing my own non-software project from GPLv3 to CC BY-SA
You have accepted two other small commits to this project, but apart from those you are the sole rightsholder in your work. Moreover, although IANAL/IANYL, because the two commits simply correct the ...
- 47k
24
votes
Accepted
Do the CC licenses prevent insults?
The Creative Commons licenses do not restrict field or purpose of use. Local laws about defamation, etc., may do so, depending on the nature of the downstream use. For example, if someone edits a CC-...
- 35.6k
20
votes
Accepted
Can I "upgrade" the version of CC BY-SA from 3.0 to 4.0 in my modification?
The CC-BY-SA 3.0 license is “forward compatible” with later versions. In section 4(b):
You may Distribute or Publicly Perform an Adaptation only under the terms of:
(i) this License;
(ii) a ...
- 38.6k
19
votes
Accepted
Does the CC-BY-SA License require that source code of derivative works be shared?
Yes, they can publish a PDF without publishing the modified LaTeX sources. No, this is not DRM.
CC-BY-SA is not an open-source license. It is intended for creative works such as photographs or ...
- 38.6k
18
votes
Accepted
How does re-licensing without the approval of authors work (eg, wikimedia case)?
You are correct that re-licensing virtually always requires the permission of the copyright holder. This was a rather exceptional case. All material on Wikipedia used to be under the license GFDL v1.2,...
- 35.6k
14
votes
Do Stack Exchange’s ToS mean that the user-generated content is double-licensed to them?
Does this sentence just summarize what the consequences are of
licensing (to SE) my content under CC BY-SA 3.0?
Or does this sentence state that I’m licensing (to SE) my content
under a ...
- 5,388
13
votes
Accepted
What is considered proper attribution for a deleted Stack Exchange post?
In 4(c) of CC BY-SA 3.0 it is defined how attribution has to be provided. For the work’s URL, it says:
[…] (iii) to the extent reasonably practicable, the URI, if any, that Licensor specifies to be ...
- 5,580
13
votes
Accepted
Can derivatives of CC BY-SA works be licensed under CC BY-NC-SA?
No, it’s not allowed.
It says on the license summary page:
No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the ...
- 5,580
13
votes
Will adding a BY-SA image to a blog post make the entire post BY-SA?
The CC ShareAlike terms merely say that whenever you do make a derivative work of the image, distribution of that derivative work must be under ShareAlike (or CC-approved ShareAlike-compatible) terms. ...
- 35.6k
13
votes
Does every adaptation of a CC BY-SA work violate its terms?
The usual disclaimer: I'm not a lawyer and this is not personalized legal advice.
Am I reading too much into the license, or am I somehow misunderstanding copyright law and how it works with Creative ...
- 357
12
votes
Stack Exchange's CC-BY-SA and Patents
The simple answer to your question is "no, there's nothing you can do about it".
But then the same applies to any MIT or BSD licensed code you use in your projects so the additional risk you'...
- 18.5k
11
votes
Accepted
Clarifying "Share Alike" in CC licenses
Your analysis would hold if the licence on the map was CC BY. For CC BY-SA, a little more is required. The licence requires that you
retain the following if it is supplied by the Licensor with the ...
- 47k
10
votes
Can I post code examples with GPL software on Stack Overflow?
Yes, you can as it is your code only (and so you can license it to SE as you like). The fact that source code contains text import g, does not make said source code derived work (as it doesn't contain ...
- 352
10
votes
Accepted
Does the Creative Commons CC BY-SA 4.0 license make it mandatory to share derived work?
That summary is indeed ambiguous. CC BY-SA (and copyleft Open Source licenses in general) do not force you to share your work. Instead:
If you share your work, then you can only do so under the same (...
- 38.6k
10
votes
Accepted
Is HTML-linked content still subject to the CC-BY-SA license?
No. HTML linking does not create a derivative work, so it is irrelevant what license the Stack Overflow post is under, it cannot possibly affect the license of the linked content.
(Otherwise you could ...
- 18.5k
9
votes
Can I "upgrade" the version of CC BY-SA from 3.0 to 4.0 in my modification?
IANAL but according to the Creative Commons Foundation although the CC-BY-SA 3.0 license allows you to license your new contributions under a CC-BY-SA 4.0 license it doesn't allow you to "upgrade&...
- 339
9
votes
Do the CC licenses prevent insults?
CC licenses cover copyright and related rights, but do not affect other permissions or restrictions. For example, personality rights might still apply – but that is extremely jurisdiction-dependent, ...
- 38.6k
9
votes
Accepted
How to provide credit when modifying a design with a CC BY-SA license?
Creative Commons licenses are copyright-based licenses, but copyright doesn't really apply in a hardware context. So, while there might be a copyright in the schematics, and all copies or ...
- 38.6k
8
votes
Accepted
Selling a book based on CC BY-SA
Distributing images alongside text creates a combined work, but not a derivative work, and your images are not bound by the CC BY-SA requirements.
Allowing the distributing of books of CC BY-SA ...
- 9,286
8
votes
Accepted
Can I post code examples with GPL software on Stack Overflow?
No, but maybe. You have correctly noted that this is a problem. You cannot paste GPL'ed code to Stack Overflow. But there are two exceptions, which depend on the copyright laws in your local ...
- 38.6k
8
votes
Does Stack Exchange disallow me to use posted contents in an Apache 2.0 licensed project?
In brief, item #1 is incorrect, and item #2 is broadly correct, with possible exceptions.
You may release a copyrighted work under any number of licenses independently and simultaneously. The fact ...
- 35.6k
8
votes
Accepted
Can a YouTube video use images licensed under Creative Commons Share Alike (CC BY SA) and not be an adaptation?
You want to reuse a CC BY-SA image in a video presentation. You don't say which version of CC BY-SA is applicable. v3 includes language that is explicit about your use case:
"Adaptation" ...
- 47k
8
votes
Accepted
Company policy says no code under license requiring sharing source can be used. Stack Overflow is CC-BY-SA. Does this mean we can't use SO at work?
You are broadly correct that if your program includes CC BY-SA code from someone else, you must license the entire program under CC BY-SA. Note that this doesn't actually force source disclosure -- ...
- 35.6k
8
votes
Accepted
CC-By-SA: Can the author update his past creation when updating his name?
Kind of.
If we look into the terms of the CC BY-SA 4.0, we see the Section 3(a)(1)(A) requirement to “retain” the Licensor's “identification”, “including by pseudonym if designated”. So you should ...
- 38.6k
7
votes
learning from GPL infects code
In copyright law, expression is copyrightable, and ideas are not copyrightable. In particular, expression is copyrightable only insofar as that expression is distinct from the idea is expresses. This ...
- 35.6k
7
votes
Creative Commons license CC BY-SA doesn't work for commercial content?
No, the share-alike terms mean that if you create a derivative work of the CC-BY-SA licensed work, you can only publish it under the same license. But including a CC-BY-SA licensed work into a larger ...
- 38.6k
7
votes
Can I use source code licensed under CC-BY-SA for commercial closed source project?
You can include CC-BY-SA source code in proprietary software iff you do not publish that software. The CC-BY-SA requirements only apply once you Share[1] the adapted work. For example, this would ...
- 38.6k
7
votes
In which cases must I relicense my product under the CC BY-SA license?
That is a lot of questions for one post, and you don't say what jurisdiction you're in. Nevertheless, and noting that IANAL/IANYL, I'll try to answer at least some of them.
My principal authority is ...
- 47k
Only top scored, non community-wiki answers of a minimum length are eligible