【官方帮助文档链接】

https://docs.qgis.org/3.16/en/docs/

https://docs.qgis.org/3.16/en/docs/pyqgis_developer_cookbook/intro.html

https://docs.qgis.org/3.16/pdf/en/

https://docs.qgis.org/3.16/pdf/cs/

特别值得一提的是，QGIS 3.16版本是QGIS的长期版本（LTR，即Long Term Release），已于2021年2月更新至长期版本库中。官方将进行长时间的维护与后续小版本升级。

 

【官方pdf文档下载链接】

QGIS-3.16-DesktopUserGuide-en.pdf
https://docs.qgis.org/3.16/pdf/en/QGIS-3.16-DesktopUserGuide-en.pdf

QGIS-3.16-DocumentationGuidelines-en.pdf
https://docs.qgis.org/3.16/pdf/en/QGIS-3.16-DocumentationGuidelines-en.pdf

QGIS-3.16-PyQGISDeveloperCookbook-en.pdf
https://docs.qgis.org/3.16/pdf/en/QGIS-3.16-PyQGISDeveloperCookbook-en.pdf

QGIS-3.16-ServerUserGuide-en.pdf
https://docs.qgis.org/3.16/pdf/en/QGIS-3.16-ServerUserGuide-en.pdf

QGIS-3.16-TrainingManual-en.pdf
https://docs.qgis.org/3.16/pdf/en/QGIS-3.16-TrainingManual-en.pdf

---------------------------------------

QGIS-3.16-DesktopUserGuide-cs.pdf
https://docs.qgis.org/3.16/pdf/cs/QGIS-3.16-DesktopUserGuide-cs.pdf

QGIS-3.16-DocumentationGuidelines-cs.pdf
https://docs.qgis.org/3.16/pdf/cs/QGIS-3.16-DocumentationGuidelines-cs.pdf

QGIS-3.16-PyQGISDeveloperCookbook-cs.pdf
https://docs.qgis.org/3.16/pdf/cs/QGIS-3.16-PyQGISDeveloperCookbook-cs.pdf

QGIS-3.16-ServerUserGuide-cs.pdf
https://docs.qgis.org/3.16/pdf/cs/QGIS-3.16-ServerUserGuide-cs.pdf

QGIS-3.16-TrainingManual-cs.pdf
https://docs.qgis.org/3.16/pdf/cs/QGIS-3.16-TrainingManual-cs.pdf