You can specify the pixel resolution for vector and raster graphics of the DWF or DWFx files that you create. The higher the resolution, the greater the precision but the larger the file size.
The following list shows the default values for vector and raster resolutions:
When you create files intended for plotting, select a resolution to match the output of your plotter or printer. High resolutions (over 2400 dpi) are for viewing. For example, when you create files of drawings that contain a lot of detail, such as a topographical map of a large region, use a higher resolution setting for greater detail in the file.
Use extreme resolutions (over 40,000 dpi) only when necessary; they may produce very large files. As you increase the resolution setting, raster image quality increases, the speed of printing decreases, and memory requirements increase.