GNU自由文档许可证

GNU自由文档许可证（簡稱GFDL）是一个反版權个授權，好拨自由文件引用个。伊由自由软件基金会創造。

GNU标志

链接进来

• Guide to the new drafts of documentation licenses
• GFDL official text
• Free Software and Free Manuals, essay by Richard Stallman
• Why Wikivoyage isn't GFDL: Problems with using the GFDL for short printed texts