Copying, modification and redistribution

The Developer's Guide to Gutenprint
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# Chapter 1. Copying, modification and redistribution

Gutenprint is free; this means that everyone is free to use it and free to redistribute it on a free basis. Gutenprint is not in the public domain; it is copyrighted and there are restrictions on its distribution, but these restrictions are designed to permit everything that a good cooperating citizen would want to do. What is not allowed is to try to prevent others from further sharing any version of Gutenprint that they might get from you.

Specifically, we want to make sure that you have the right to give away copies of Gutenprint, that you receive source code or else can get it if you want it, that you can change Gutenprint or use pieces of it in new free programs, and that you know you can do these things.

To make sure that everyone has such rights, we have to forbid you to deprive anyone else of these rights. For example, if you distribute copies of Gutenprint, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code, and you must tell them their rights.

Also, for our own protection, we must make certain that everyone finds out that there is no warranty for Gutenprint. If Gutenprint is modified by someone else and passed on, we want their recipients to know that what they have is not what we distributed, so that any problems introduced by others will no reflect on our reputation.

Gutenprint is licensed under the terms of the GNU General Public License (GPL), reproduced in Appendix A.

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