Questions tagged [multi-licensing]

Works can be released under two (or more) licenses, which may or may not be compatible, giving recipients the choice of which terms they will abide by

50
votes
2answers
7k views

Why is CC BY-SA discouraged for code?

Everybody knows that you shouldn't use a CC BY-SA license on your code. Even the Creative Commons folk recommend against it. What I don't know or understand is why. I can't seem to find any ...
41
votes
3answers
961 views

Can I “Override” a licensing policy?

On many sites, especially Stack Overflow, I can't help but notice such amazing code snippets. However, they come with a "catch" designed by the author. With user contributions being licensed with the ...
8
votes
1answer
274 views

Possibility of non-commercial ‘open-source’ and attribution based licence

I am currently planning to launch an alpha version of the software as a representative of an unregistered company. We (currently I'm the only person on the team) do not have any patents and are not ...
6
votes
1answer
745 views

As owner of GPL library, can I break the licensing terms?

As far as I understand, choosing GPL licence for library does not permits use of it in proprietary programs as opposed to LGPL. So releasing my library (or code classes), I'm forcing people to use ...
10
votes
1answer
1k views

Is it possible to restrict GNU GPLv3 to non-commercial use only?

I've noticed that the jQuery plugin "Fancybox" has a peculiar licensing note in its header: // Licensed GPLv3 for open source use // or fancyBox Commercial License for commercial use // // http://...
13
votes
5answers
568 views

May someone else apply a license to CC0 material?

Alice licensed her work under CC0 1.0. May Bob take Alice’s work and publish it under another Creative Commons license (e.g., CC BY-SA)? If yes, may Bob publish it under his own name (i.e., not ...
3
votes
0answers
77 views

Meaning of “and” and “additionally” connectors with two Open Source licenses

[This question is an expansion of the question "Meaning of OFL and GPL" because of limits on the number of characters in comment-responses]. I am unsure of the meaning of the terms "and" and "...
8
votes
4answers
141 views

If something is licensed to me under two (Open Source) licences, can I redistribute under only one?

I have modified a particular file (A LaTeX Beamer Template) The readme says: The code of the package is dual-license. This means that you can decide which license you wish to use when using the ...
4
votes
2answers
132 views

Under what conditions can someone dual licence existing works?

When software is diffused under an open-source licence I imagine that a project becomes the "intellectual property" of the community. However, I'm not clear about this answer in that an author agrees ...
9
votes
2answers
510 views

Does it make sense to license my content under a more restrictive license if it's licensed CC-BY-SA?

Let's say that I make a post on a Stack Exchange site. That content is owned by me, but I gave the company a perpetual and irrevocable license under Creative Commons Attribution Share Alike 3.0. As ...
8
votes
1answer
128 views

How to license Stack Overflow contributions as permissive as possible? [duplicate]

Important: this related Meta Stack Exchange post. Code you post on Stack Overflow is licensed "cc-by-sa 3.0 with attribution required". Now this may pose problems for people wanting to use my ...
11
votes
3answers
282 views

Can I apply one license to specific users and another to others?

Suppose I am a developer. I am developing a piece of software. I decide I want to make this code open source. But... I only want developers (or people that will be using the code in other projects) to ...
5
votes
2answers
145 views

Licence for open-source code which is part of proprietary code?

I've a proprietary program which is using OOP classes which I want to publish as FOSS (only the classes). Which FOSS compatible license I can choose for the classes which will work with my ...
4
votes
2answers
169 views

License similar to GPL, but allowing to incorporate into the commercial version

Continuing this question: I want a license L which is generally like GPL, but allows us to do the following: License our software under both L and a commercial license. Require that every patch (or ...
3
votes
2answers
62 views

JPEG comment to convey Copyleft Multi-Licenced Copyright Notice

This question is related to Copyleft Multi-Licenced Copyright Notice. I upload pictures on commons.wikimedia.org and I want to facilitate the reuse but I want derivatives stay "libre". Therefore I ...
3
votes
2answers
52 views

Copyleft Multi-Licenced Copyright Notice

I want to allow any usage/modification/distribution of my work except with the restriction that my work and derivatives must stay "libre". Therefore I think the right way is to publish my work under ...
3
votes
2answers
1k views

GPL, LGPL or MPL for open source app with closed source Pro flavour

I have had a fairly popular Android business app on Google Play a while now. It is available as a free version and a version with features targeted to bigger businesses. I am currently in the process ...
3
votes
1answer
103 views

Do Stack Exchange’s ToS mean that the user-generated content is double-licensed to them?

In the ToS of Stack Exchange sites, under the section Subscriber Content, the first sentence states that my submitted content is licensed (to Stack Exchange) under CC BY-SA 3.0: You agree that all ...
2
votes
1answer
77 views

Can open and closed source versions of software exist in parallel and can code be ported either way?

Say a vendor has both a community version of their software and a more proprietary one. How can this be done in licensing terms? Can code be ported either way? What are the appropriate practises if ...
2
votes
2answers
200 views

License for Graphics Design Program

I've written a Graphics Design program, with less functionality than Photoshop, but more than MS Paint. I've targeted the application towards teenagers and kids, mainly for educational usages for ...
0
votes
1answer
73 views

Open Source (A)GPL(2|3) but limit resources or business for others without a paid license [duplicate]

I want to release come kind of computation engine as an open source project. For the whole source and usage, I am fine with the content of the GPL but what I want to make sure: There should be a ...
-3
votes
1answer
303 views

Font licensed as GPL *and* OFL … Can I use under OFL? [duplicate]

I would like the build upon the Libertine Open Fonts Project under SIL OFL 1.1, a permission that seems to be intended by the authors. However, several issues / irregularities crop up in the wording ...