ClickFile
menu Plot.At the Command prompt, enter plot.
In the Printer/Plotter area, in the Name list, select a DWF
plotting device. Click Properties.
In the Plotter Configuration Editor, Device and Document
Settings tab, expand the Graphics node in the tree window.
Click Vector Graphics.
In the Color Depth area, select a color depth. Click OK.
In the Changes to a Printer Configuration dialog box, do one of
the following. Then click OK.
Select Apply Changes for the Current Plot Only to specify a
one-time override of the configuration settings that isn't saved to
the DWF configuration file.
Select Save Changes to the Following File to save the
configuration changes to the DWF configuration file.
In the Browse for Plot File dialog box, in the Save In location
list, select a plotting location for the DWF file, and click Save.
Click OK.