ADI ® (Autodesk Device Interface) drivers have been the standard for plotting and other devices for many AutoCAD versions
-and this approach has satisfied AutoCAD users in the DOS and early Windows environments.
-however, the time has come to adopt a more efficient and standard approach for communicating with output devices.
AutoCAD 2000 uses HDI ® (Heidi Device Interface) drivers as a replacement to the traditional ADI plotter drivers.
HDI features permit a modern graphical user interface that is more
consistent with the Windows standard.
-the Plot dialogue box is now more consistent with the Windows Print interface which makes it more intuitive to learn.
-Windows system drivers now support the same features as HDI drivers and system driver performance has been improved.
-page sizes, effective plotting area, resolution and media type are obtained directly from the output device.
-plot settings are now saved in drawings to simplify plot setup and save time every time you make a plot of the same layout.
-plot settings can also be saved and then restored in other layouts (in other drawings) which can save time setting up new layouts.
-plot previews are WYSIWYG (lineweights, color, screening, fill patterns, paper size, plot area etc..)
-plot styles can change the way objects appear in plots when you attach plot style table files to page layouts.
-plotter devices (*.pc3 files) are now easier to share with other users because they are more portable.