On the workspace or in the picture list, select the objects or grouped objects you want to modify.
On the Effects menu, click Blur and Sharpen.
Do one of the following:
To blur the object, move the Blur/Sharpen slider to the left or enter a negative value in the Blur/Sharpen box.
To sharpen the object, move the Blur/Sharpen slider to the right or enter a positive value in the Blur/Sharpen box.
Tip If you want to modify only part of the object, you can use options in the Cut Out workpane to select the areas you want to change. Ways to select an area