Offline package documentation with texdoc

Every package in Latex comes with its documentation. Hence, most LaTeX-distributions contain the “complete” documentation by default, which is accessible without an internet connection.

In order to access a documentation file of any package, go to the command line and type:

texdoc package-name

For example, to open the documentation of the hyperref package, use:

texdoc hyperref

The texdoc command opens the documentation in the default PDF viewer, depending on your OS and configuration.