PloCon is program which carries out continuation output of the drawing of PDF/HPGL/image file at Windows printer, and there are the following functions. It does not give displaying. (1) Paper and output scale - Specify fixed form paper, and carry out automatic scaling so that paper size may be matched. - Specify fixed form paper and output with designation scale. - Select fixed form paper automatically with designation scale. It is automatic selection about fixed form paper and direction of the optimal printer matched with drawing size which applied scale to drawing area. (2) Output from interactive output and other applications. (3) Color and width change of line, whole drawing black and white / color change, background color change, pen ON/OFF (4) Vector font / TrueType font change of character font (5) Multi-page correspondence (6) Support to many input file formats PDF,HPGL,HP-GL/2,HP RTL,EMF,TIFF,JPEG,Bitmap,PCX,FPX,PNG (7) Output mode Mode 1: Automatic output mode It will output, if specified output folder is supervised and PDF/HPGL/Image file enters in output folder, and PDF/HPGL/Image file after output is deleted automatically. When there is no drawing file, it waits until file comes. Mode 2 : Continuation output mode Plural drawing files described in specified output list file are outputted continuously. Mode 3 : Step output mode One file in plural drawing files described in specified output list file is outputted, and it waits for the next output directions.