GFDL

GFDL（又また叫さけべ GNU FDL，全ぜん名な GNU Free Documentation License），可か以譯 GNU 自由じゆう文章ぶんしょう授權條じょう款，係かかり一いち個こ由ゆかり自由じゆう軟件基金ききん會かい為ため GNU 計けい劃而設計せっけい嘅一套反はん版權はんけん授權條じょう款，特別とくべつ係がかり設計せっけい來らい畀自由じゆう文ぶん件けん用よう，對應たいおう GPL 授權條じょう款。同どう GPL 一いち樣よう，佢係設計せっけい到いた讀者どくしゃ有權ゆうけん複製ふくせい、分ぶん發はつ同どう修おさむ改あらため GFDL 授權嘅作品さくひん，而且無論むろん係かかり直接ちょくせつ複製ふくせい抑そもそも或ある二に次じ創作そうさく嘅作品さくひん，都と一定要用一樣嘅條款授權。抄しょう出來でき嘅複製品せいひん亦また都と准じゅん賣うり，但ただし係かかり如果印しるし得とく多た（即そく係がかり多た過か100份），賣うれ嘅時候じこう就一定要跟埋原作或者作品源みなもと碼。

GFDL 本來ほんらい係がかり設計せっけい來らい畀說明せつめい書しょ、課か本ほん、參考さんこう書しょ、教材きょうざい同どう GPL 軟件嘅附屬ふぞく說明せつめい用よう嘅，但ただし係かかり佢亦可か以用喺任何なん題材だいざい、任にん何なん領域りょういき嘅任何なん文字もじ作品さくひん。

｢次じ要よう部分ぶぶん｣

喺呢套條款之下か，所謂いわゆる ｢文ぶん件けん｣（即そく係がかり正文せいぶん）同どう所謂いわゆる ｢次じ要よう部分ぶぶん｣（secondary sections）有ゆう清楚せいそ嘅劃分ぶん。所謂いわゆる次つぎ要よう部分ぶぶん，係かかり指ゆび未必みひつ整合せいごう咗入正文せいぶん，但ただし係かかり同どう正文せいぶん有ゆう關せき嘅嘢，例れい如印刷いんさつ業ぎょう所しょ講こう嘅正文せいぶん前部ぜんぶ（front matter）同どう結文けつぶん（back matter，即そく係がかり例れい如附錄ふろく等とう等とう嘅部分ぶぶん），次つぎ要よう部分ぶぶん可か以包括ほうかつ例れい如作者しゃ資料しりょう、出版しゅっぱん者しゃ資料しりょう等とう等とう同どう正文せいぶん主題しゅだい冇直接ちょくせつ關係かんけい嘅嘢。｢文ぶん件けん｣（正文せいぶん）可か以隨便びん改あらため，但ただし係かかり次じ要よう部ぶ份反而可能かのう有ゆう特別とくべつ嘅限制せい，目的もくてき係がかり確保かくほ之の前ぜん嘅作者しゃ唔會無む端はし端はし冇咗名めい等とう等とう；另外，正文せいぶん嘅修改あらため條じょう款雖然しか同どう GPL 對應たいおう，但ただし係かかり GFDL 同どう GPL 並なみ唔兼容よう，GPL 同どう GFDL 亦また都と唔兼容よう。

Specifically, the authors of prior versions have to be acknowledged and certain "invariant sections" specified by the original author and dealing with his or her relationship to the subject matter may not be changed. If the material is modified, its title has to be changed (unless the prior authors give permission to retain the title). The license also has provisions for the handling of front-cover and back-cover texts of books, as well as for "History", "Acknowledgements", "Dedications" and "Endorsements" sections.

商業しょうぎょう再さい分ぶん發はつ

GFDL requires the ability to "copy and distribute the Document in any medium, either commercially or noncommercially" and therefore is incompatible with material that excludes commercial re-use. Material that restricts commercial re-use is incompatible with the license and cannot be incorporated into the work. However, incorporating such restricted material may be fair use under United States copyright law and does not need to be licensed to fall within the GFDL if such fair use is covered by all potential subsequent uses.一いち個こ例れい子こ係がかりof such liberal and commercial fair use is parody.

對たいGFDL嘅批評ひひょう

The Debian project and Nathanael Nerode have raised objections. Debian developers eventually voted to consider works licensed under the GFDL to comply with their Debian Free Software Guidelines provided the invariant section clauses are not used. These critics recommend the use of alternate licenses such as the share-alike Creative Commons licenses, the BSD Documentation License, or even the GNU GPL. They consider the GFDL a non-free license. The reasons for this are that the GFDL allows "invariant" text which cannot be modified or removed, and that its prohibition against digital rights management (DRM) systems applies to valid usages, like for "private copies made and not distributed".

反はん數すう碼權利けんり管理かんり反はん得とく過か咗火

The GNU FDL contains the statement:

You may not use technical measures to obstruct or control the reading or further copying of the copies you make or distribute.

A criticism of this language is that it is too broad, because it applies to private copies made but not distributed. This means that a licensee is not allowed to save document copies "made" in a proprietary file format or using encryption.

In 2003, Richard Stallman said about the above sentence on the debian-legal mailing list:

This means that you cannot publish them under DRM systems to restrict the possessors of the copies. It isn't supposed to refer to use of encryption or file access control on your own copy. I will talk with our lawyer and see if that sentence needs to be clarified.

唔准改あらため嘅部分ぶぶん

A GNU FDL work can quickly be encumbered因いん為ためa new, different, title must be given and a list of previous titles must be kept. This could lead to the situation where there are a whole series of title pages, and dedications, in each and every copy of the book if it has a long lineage. These pages cannot ever be removed, at least not until the work enters the public domain after copyright expires.

Richard Stallman 講こう過か about invariant sections on the debian-legal mailing list:

The goal of invariant sections, ever since the 80s when we first made the GNU Manifesto an invariant section in the Emacs Manual, was to make sure they could not be removed. Specifically, to make sure that distributors of Emacs that also distribute non-free software could not remove the statements of our philosophy, which they might think of doing because those statements criticize their actions.

同どう GPL 互相唔兼容よう

The GNU FDL is incompatible in both directions with the GPL: that is GNU FDL material cannot be put into GPL code and GPL code cannot be put into a GNU FDL manual. Because of this, code samples are often dual-licensed so that they may appear in documentation and can be incorporated into a free software program.

At the2006年ねん6月22號ごう－23號ごう international GPLv3 conference in Barcelona, Moglen hinted that a future version of the GPL could be made suitable for documentation:

By expressing LGPL as just an additional permission on top of GPL we simplify our licensing landscape drastically. It's like for physics getting rid of a force, right? We just unified electro-weak, ok? The grand unified field theory still escapes us until the document licences too are just additional permissions on top of GPL. I don't know how we'll ever get there, that's gravity, it's really hard.

印しるし嘢超麻あさ煩はん

The GNU FDL requires that licenses, when printing a文ぶん件けんcovered by the license, must also include "this License, the copyright notices, and the license notice saying this License applies to the Document".咁樣表示ひょうじ咗如果はて一いち篇へん文ぶんlicensee prints out a copy of an article whose text is covered under the GNU FDL, he or she must also include a copyright notice and a physical printout of the GNU FDL, which is a significantly large document in itself.

｢透明とうめい｣ 嘅格式しき

The definition of a "transparent" format is complicated, and may be difficult to apply. For example, drawings are required to be in a format that allows them to be revised straightforwardly with "some widely available drawing editor." The definition of "widely available" may be difficult to interpret, and may change over time, since, e.g., the open-source Inkscape編輯へんしゅう者しゃis rapidly maturing, but has not yet reached version 1.0. This section, which was rewritten somewhat between versions 1.1 and 1.2 of the license, uses the terms "widely available" and "proprietary" inconsistently and without defining them. According to a strict interpretation of the license, the references to "generic text editors" could be interpreted as ruling out a format used by an open-source word-processor such as Abiword; according to a loose interpretation, however, Microsoft Word .doc format could qualify as transparent, since a subset of .doc files can be edited perfectly using OpenOffice.org, and the format therefore is not one "that can be read and edited only by proprietary word processors."

歷史れきし

喺 1999 年ねん底そこ，第だい一いち份 FDL 草稿そうこう出で咗，用よう來らい搵人畀意見いけん。修おさむ改あらため咗幾次じ之これ後ご，2000年ねん3月がつ出で咗第 1.1 版はん，2002年ねん11月がつ出で咗第 1.2 版はん，喺2007年ねん係がかり第だい 1.2 版はん。

2006年ねん9月26號ごう，第だい一份討論用嘅 GFDL 第だい二に版はん草稿そうこう出で咗，同時どうじ出で埋うめ新しん寫うつし嘅 GNU Simpler Free Documentation License（GNU 自由じゆう文章ぶんしょう授權條じょう款簡化か版ばん）草稿そうこう。

新版しんぱん嘅 GFDL 比ひ舊版きゅうばん好こう咗好多た，例れい如加入かにゅう咗 GPL 寫うつし第だい三版嘅時喺寫嘅新條款，等とう做國際こくさい化か易えき啲，易えき啲將條じょう款用喺錄音ろくおん或ある者もの影かげ片へん，節錄せつろく用よう作品さくひん嘅時候じこう冇咁麻あさ煩はん等とう等とう。

至いたり於簡化か版ばん，就冇咗有關せき ｢封ふう面めん、封ふう底そこ｣（Cover Texts）同どう ｢唔改得とく嘅部分ぶぶん｣（Invariant Sections）嘅限制せい，令れい唔想用よう爾しか啲條款嘅作者さくしゃ可か以有個こ簡單かんたん啲嘅選擇せんたく。

其他嘅自由じゆう授權條じょう款

坊間ぼうかん有ゆう其他嘅自由じゆう授權條じょう款，當とう中有ちゅうう啲同 GFDL 完全かんぜん冇關，第だい啲就係がかり回かい應おう GFDL 被ひ人ひと覺さとし得とく寫うつし得とく差さ嘅地方ちほう。例れい子こ包括ほうかつ：

• FreeBSD Documentation License
• 共きょう享とおる創意そうい
• Design Science License
• Free Art license
• Open Content License
• Open Publication License

睇埋

• BSD license
• 版權はんけん
• Copyleft
• Free software license
• GNU
• Open content
• Share-alike
• Software licensing
• Non-commercial educational

連れん出で去ざ

• GFDL 條じょう款原文げんぶん
• GFDL 嘅官方かた網もう頁ぺーじ
• Free Software and Free Manuals
• Why Wikivoyage isn't GFDL: Problems with using the GFDL for short printed texts
• The Free Universal Encyclopedia And Learning Resource
• Guide to the new drafts of documentation licenses