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The company I work for is a pay-for-subscription news website. Is it legal to use Quantum GIS (QGIS) to host maps that would be only available on our site to paying subscribers? I'm having trouble figuring out the GNU license. Any help would be appreciated. Thanks.

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You can charge for the Maps made by QGIS, but cannot charge for QGIS itself. You are creating a product from it 'value added' and is how business makes money. – Mapperz May 23 '12 at 20:02
Great, thank you so much for the info. – billted98 May 24 '12 at 15:02
up vote 4 down vote accepted

You can use it for everything you want - no restrictions apply.

You also can sell QGIS itself (you just need to find someone who's willing to pay).

But if you do (even when you distribute without charge), you have to include the source code of QGIS and all own extensions (plugins, features, whatever) you added. Basically pass on everything you got (and not restricting it by anything you add).

For more general GPL questions checkout

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Much appreciated, thank you! – billted98 May 24 '12 at 15:02

I had been using ArcGIS but due to requiring a more expensive license there were certain operations I could not do. Quantum was able to do the operations at no cost. Qantum is a great bit of kit

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We're looking for long answers that provide some explanation and context. Don't just give a one-line answer; explain why your answer is right, ideally with citations. Answers that don't include explanations may be removed.

Martin: Welcome to stackexchange and thanks for your answer. I'm not sure you are answering the question that was asked, so just be sure your answers in the future address the specifics of the original question. – Jay Guarneri Oct 23 '13 at 17:48

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