(1) File: Support to many file formats. Input: HPGL, HP-GL/2, HP RTL, PDF, DXF, DWG, GERBER, NC-Drill, IGES, SXF, EMF, TIFF, JPEG, Bitmap, PCX, FPX, GIF, PNG, CMT. Output: HPGL, HP-GL/2, HP RTL, PDF, DXF, DWG, IGES, SXF, EMF, TIFF, JPEG, Bitmap, PCX, FPX, GIF, PNG, Printer, Plotter, WMF, PS, EPS, SVG, XPS, PCL, CMT. Black / white and color copy to clipboard. (2) Display: Color and width change of line, 'black and white' / 'color' change, background color change, pen ON/OFF. Display mode (Copy/Merge/Xor/data) change. Rotation, mirror, grid displaying. Thumbnail display. Multi-page correspondence. Vector font / TrueType font change of text font. (3) Request: Measurement function of coordinates, length, area, line width, and angle. Search text. Connected line search, the total line length measurement. (4) Edit drawing (Comment function): File: New create, Input file of (1), Save to file of (1), Insert: Figure kind: Polyline, Arc, Circle, Horizontal line, Vertical line, Slanting line, Opposite side angle line, Regular polygon, Ellipse, Offset line, Free curve, Cloud shape line, Spline, Surface, Rectangle, Long circle, Text, Bitmap, Macro. Dimension (Horizontal, Vertical, Parallel, Angle, Radius, Diameter). Insert Coodinates at Key, Insert Same Point, Next Same Point. Insert-Grid ON/OFF. Set: Layer: 1..20, Set property. Edit: Select (individual, rectangular area, polygon area selecting). Move copy, Delete, Divide/Delete/Move/RouteChange polyline section. Delete line in selected area boundary, Trim, Change property. Change vertex R, Chamfer, Connect Line, Rotate copy, Scale Up/Down copy. Macro-izing, Macro breakup, ReDo, UnDo.