PDF files are installed in the Inferno documentation directory when you install Inferno. You can use commands in a shell to browse to the PDF files. You can also access them directly from the usr/discreet/<product home>/documentation directory by selecting the PDF file from the PDF Documentation box in the Preferences menu.
The options in the PDF Documentation box dynamically reflect the contents of the documentation directory. You can add any other PDF files to this directory in order to enable access to them from Inferno.
To access the PDF files installed on your hard drive:
The document opens automatically in Xpdf on Linux workstations.