Hi fellas, anyone answer my question until now, well, Now, I have de answer to my question, The gap that was generate was in my first detail band, inside of my subreport, did find this solution by the next step. 1.- I did wrap with frame all sub report to find what had the blank space. 2.- Inside of the subreport contains other subreports one of them has a result set from query db, if it is set with the heigth of the row of field on it. it duplicate the heigth size of the return row, that was my problem. 3.- Only I stretch my subreport and without problem. I hope that you can find the solution with it, ifis the case. gretting.