I need to provide sharp edge(not the corner of the board) on my pcb which has to be used as a male connector with connecting pads in top and bottom layer.
So, please suggest me how to sharpen top and bottom layer.
didnt get you clearly - what does 'sharpen ' mean
do u want to have the edges to end in a > instead of a flat | surface
or do you want to mount a 2.5mm header along the edge of PCB .. soldering on both top and bottom layers
you only need to draw a line in top and bottom overlay to indicate start position of tapering
the important part here is not design .. but the place where you want to have the pcb's done - if they have this service / capability
alternately you may also mention the purpose .. to allow people here at forum give you other possible options