PloView is viewer for viewing drawing of PDF/HPGL/image file, and there are the following functions. (1) High-speed displaying of vector drawing, and many commands about displaying (2) Color and width change of line, whole drawing black and white / color change, background color change, pen ON/OFF (3) Mode(Merge command of overwrite / mixed color / difference writing / data) change of drawing (4) Rotation, mirror, grid displaying (5) Thumbnail displaying (6) Vector font / TrueType font change of character font (7) Measurement function of coordinates, length, line width, and angle (8) Character search (9) Connected line search, the total line length measurement (10) Comment (straight line, free form curve, cloud mark, rectangle, ellipse, character) insertion edit (11) Multi-page correspondence (12) Black and white/color copy to clipboard (13) Support to many file formats Input:PDF,HPGL,HP-GL/2,HP RTL,EMF,TIFF,JPEG,Bitmap,PCX,FPX,PNG Output:PDF,HP-GL/2,EMF,TIFF,DXF,JPEG,Bitmap,IGES,Printer,Plotter (WMF,EMF,PS,EPS,SVG,XPS,HP-GL/2@HP RTL,PCL):( ) is converted from PDF