Copyrights

The license Undocumented Printing uses grants free access to our content in the same sense as free software is licensed freely. This principle is known as copyleft. That is to say, Undocumented Printing content can be copied, modified, and redistributed so long as the new version grants the same freedoms to others and acknowledges the authors of the Undocumented Printing article used (a direct link back to the article satisfies our author credit requirement). Undocumented Printing articles therefore will remain free forever and can be used by anybody subject to certain restrictions, most of which serve to ensure that freedom.

To fulfill the above goals, the text contained in Undocumented Printing is licensed to the public under the GNU Free Documentation License (GFDL). The full text of this license is at GNU Free Documentation License.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts.
A copy of the license is included in the section entitled ”GNU Free Documentation License”.
Content on Undocumented Printing is covered by disclaimers.

The English text of the GFDL is the only legally binding document; what follows is our interpretation of the GFDL: the rights and obligations of users and contributors.

If you want to use Undocumented Printing materials in your own books/articles/web sites or other publications, you can do so, but you have to follow the GFDL.

If you create a derivative version by changing or adding content, this entails the following:

your materials in turn have to be licensed under GFDL, you must acknowledge the authorship of the article (section 4B), and you must provide access to the “transparent copy” of the material (section 4J). (The “transparent copy” of a Undocumented Printing article is any of a number of formats available from us, including the wiki text, the html web pages, xml feed, etc.) You may be able to partially fulfill the latter two obligations by providing a conspicuous direct link back to the Undocumented Printing article hosted on this website. You also need to provide access to a transparent copy of the new text. However, please note that the Undocumented Printing makes no guarantee to retain authorship information and a transparent copy of articles. Therefore, you are encouraged to provide this authorship information and a transparent copy with your derived works.

An example notice, for an article that uses the Undocumented Printing article ”EMF - Enhanced MetaFile format” might read as follows:

This article is licensed under the GNU Free Documentation License. It uses material from the Undocumented Printing ”EMF - Enhanced MetaFile format” article.
(”EMF - Enhanced MetaFile format” and the Undocumented Printing URL must of course be substituted accordingly.)

Alternatively you can distribute your copy of ”EMF - Enhanced MetaFile format” along with a copy of the GFDL (as explained in the text) and list at least five (or all if fewer than five) principal authors on the title page (or top of the document).

All original Undocumented Printing text is distributed under the GFDL. Occasionally, Undocumented Printing articles may include images, sounds, or text quotes used under the U.S. Copyright law ”fair use” doctrine. It is preferred that these be obtained under the most free (libre) license (such as the GFDL or public domain) practical. In cases where no such images/sounds are currently available, then fair use images are acceptable (until such time as free images become available).

In such a case, the material should be identified as from an external source (on the image description page, or history page, as appropriate). As “fair use” is specific to the use that you contemplate it is best if your describe the fair use rationale for such specific use either in hidden text in the article or on the image description page. Remember what is fair use for Undocumented Printing may not be considered a fair use for your intended use of the content in another context.

For example, if we include an image under fair use, you must ensure that your use of the article also qualifies for fair use (this might not be the case, for example, if you were using a Undocumented Printing article for a commercial use that would otherwise be allowed by the GFDL and the fair use would not be allowed under that commercial use).

Undocumented Printing does use some text under licenses that are compatible with the GFDL but may require additional terms that we do not require for original Undocumented Printing text (such as including Invariant Sections, Front-Cover Texts, or Back-Cover Texts). When using these materials, you have to include those invariant sections verbatim.

If you contribute material to Undocumented Printing, you thereby license it to the public under the GFDL (with no invariant sections, front-cover texts, or back-cover texts). In order to contribute, you therefore must be in a position to grant this license, which means that either

• you own the copyright to the material, for instance because you produced it yourself, or
• you acquired the material from a source that allows the licensing under GFDL, for instance because the material is in the public domain or is itself published under GFDL.

In the first case, you retain copyright to your materials. You can later republish and relicense them in any way you like. However, you can never retract the GFDL license for the versions you placed here: that material will remain under GFDL forever. In the second case, if you incorporate external GFDL materials, as a requirement of the GFDL, you need to acknowledge the authorship and provide a link back to the network location of the original copy. If the original copy required invariant sections, you have to incorporate those into the Undocumented Printing article; it is however very desirable to replace GFDL texts with invariant sections by original content without invariant sections whenever possible.

If you use part of a copyrighted work under “fair use”, or if you obtain special permission to use a copyrighted work from the copyright holder under the terms of our license, you must make a note of that fact (along with names and dates). It is our goal to be able to freely redistribute as much of Undocumented Printing's material as possible, so original images and sound files licensed under the GFDL or in the public domain are greatly preferred to copyrighted media files used under fair use.

Never use materials that infringe the copyrights of others. This could create legal liabilities and seriously hurt the project. If in doubt, write it yourself.

Note that copyright law governs the creative expression of ideas, not the ideas or information themselves. Therefore, it is perfectly legal to read an encyclopedia article or other work, reformulate it in your own words, and submit it to Undocumented Printing.

Linking to copyrighted works is usually not a problem, as long as you have made a reasonable effort to determine that the page in question is not violating someone else's copyright. If it is, please do not link to the page. Whether such a link is contributory infringement is currently being debated in the courts, but in any case, linking to a site that illegally distributes someone else's work sheds a bad light on us.

If some of the content of a page really is an infringement, then the infringing content should be removed, and a note to that effect should be made, along with the original source. If the author's permission is obtained later, the text can be restored.

In extreme cases of contributors continuing to post copyrighted material after appropriate warnings, such users may be blocked from editing to protect the project.