Hiding Image when empty in Adobe form

Hi Gurus,

I need to hide an image field when image field is empty. (I'm passing Image in xstring from driver program).

I am able to hide the image. But it displays empty space in the place of image field. I don't need that space. What should I do?

I tried the below code seeing other SCN posts. Its showing empty space only.

if(this.rawValue ==null)

{

this.presence = "hidden";

}

Kindly help me..

Thanks in Advance.