Adding graphics to forms

[CTD]

I am creating a questionnaire type form where users can enter as much or as little information they think is necessary to answer specific questions. I want to offer the ability to insert pictures, or other graphics, at various points throughout the document, if they so choose. The problem I'm having is when I add the space for a picture, it takes up almost 4 sq. in. on the page. I would like this to take up almost no space at all (except maybe a check box) unless, and until, the user decides to add the picture. Is there a way?