It is very simple,there is option called Convert to Pcb,click on that....Beside this also check the tutorial given in help option for step by step process.
I did not find any option like convert to pcb.
what i need is to update all the corrections whatever i did in pads logic to pads layout
finally i got it how to do that .
Great,how did you do that:!: i use orcad schematic very frequently and seldom use Pads Logic,anyway i will cross check the option which i had mentioned in my earlier mail,when time permits.
From tool menu choose pads layout option,
You will get pads layout link dialog box.....
In the document tab mention the pcb filename and in the design tab click ECO to PCB , it will update whatever changes u did in schematics.