... 3.0.8 - 3.0.18 only, PHP 4 >= 4.0.0) cpdf_arc -- Draws an arc . void cpdf_arc ( int pdf document, float x-coor, float y-coor, float radius, float start, float end [, int mode]) . The cpdf_arc() function draws an arc with center at point ( x-coor , y-coor ) and radius radius , starting at angle start and ending at angle end . The optional parameter mode determines the unit length. If it's 0 or omitted the default unit as specified for the page is used. ...