+@table @code
+@item -O format=@{pdf|ps|svg@}
+Specify the output format. This is only necessary if the file name
+given on @option{-o} does not end in @file{.pdf}, @file{.ps}, or
+@file{.svg}.
+
+@item -O paper-size=@var{paper-size}
+Paper size, as a name (e.g.@: @code{a4}, @code{letter}) or
+measurements (e.g.@: @code{210x297}, @code{8.5x11in}).
+
+The default paper size is taken from the @env{PAPERSIZE} environment
+variable or the file indicated by the @env{PAPERCONF} environment
+variable, if either variable is set. If not, and your system supports
+the @code{LC_PAPER} locale category, then the default paper size is
+taken from the locale. Otherwise, if @file{/etc/papersize} exists,
+the default paper size is read from it. As a last resort, A4 paper is
+assumed.
+
+@item -O foreground-color=@var{color}
+@itemx -O background-color=@var{color}
+Sets @var{color} as the color to be used for the background or foreground.
+Color should be given in the format @code{#@var{RRRR}@var{GGGG}@var{BBBB}},
+where @var{RRRR}, @var{GGGG} and @var{BBBB} are 4 character hexadecimal
+representations of the red, green and blue components respectively.
+
+@item -O orientation=@var{orientation}
+Either @code{portrait} or @code{landscape}. Default: @code{portrait}.
+
+@item -O left-margin=@var{dimension}
+@itemx -O right-margin=@var{dimension}
+@itemx -O top-margin=@var{dimension}
+@itemx -O bottom-margin=@var{dimension}
+Sets the margins around the page. See
+below for the allowed forms of @var{dimension} Default: @code{0.5in}.
+
+@item -O prop-font=@var{font-name}
+@itemx -O emph-font=@var{font-name}
+@itemx -O fixed-font=@var{font-name}
+Sets the font used for proportional, emphasized, or fixed-pitch text.
+Most systems support CSS-like font names such as ``serif'' and
+``monospace'', but a wide range of system-specific font are likely to
+be supported as well.
+
+Default: proportional font @code{serif}, emphasis font @code{serif
+italic}, fixed-pitch font @code{monospace}.
+
+@item -O font-size=@var{font-size}
+Sets the size of the default fonts, in thousandths of a point. Default:
+10000 (10 point).
+
+@item -O line-gutter=@var{dimension}
+Sets the width of white space on either side of lines that border text
+or graphics objects. Default: @code{1pt}.
+
+@item -O line-spacing=@var{dimension}
+Sets the spacing between the lines in a double line in a table.
+Default: @code{1pt}.
+
+@item -O line-width=@var{dimension}
+Sets the width of the lines used in tables. Default: @code{0.5pt}.
+@end table