3.2           

3.2.1       

1 pt = 1/72 inch = 25.4/72 mm = 0.3528 mm

PDF_rotate( )    PDF_scale( )    PDF_translate( )    PDF_skew( )   

PDF_scale(p, 28.3465, 28.3465);

72   

2.54 = 28.3465               

usercoordinates                    

true                 

PDF_set_parameter(p, "usercoordinates", "true");

usercoordinates                    

true

grid.pdf                                                                                

60

3   

:  PDFlib