pdfopen --version (return code: 0)
This is pdfopen version 0.86
pdfopen --help (return code: 0)
This is version 0.86 of pdfopen.
Usage:
pdfopen [-h|--help|-?]
Show this help and exit.
pdfopen [-v|--version]
Show the version number and exit.
pdfopen [-r|--reset_focus] [[-]-viewer <prog>]
[-p|--page <n>] [-g|--goto <named-dest>] [--file] <file.pdf>
If the PDF viewer <prog> is displaying <file.pdf>, reload that file;
Otherwise call <prog> to display <file.pdf>.
If '-r' or '--reset_focus' is used, attempt to reset the input focus
after calling the viewer program.
If the viewer allows it and is not already running, the argument
of -p/--page specifies the first page to display.
If the viewer allows it and is not already running, the argument
of -g/--goto specifies the named destination to view.
NOTE: -g overrides -p
The default viewer program is ar9.
Implemented viewers: 'ar9' 'ar9-tab' 'ar8' 'ar7' 'ar5' 'xpdf' and 'evince'.
Note: ar9 uses acroread's -openInNewInstance argument, ar9-tab does not.