...also (digressing slightly), saving to eps from illustrator behaves differently, in that it doesn't take into account where it is positioned in relation to the artboard, eps will just save right around the objects (or art box), even objects you can't see...
...in some situations you might have to define a crop area in illustrator before saving to eps (or export to a raster image format), or for example target a small area of a very large graphic to print a quick proof of...
...to define a crop area, draw a box and with it selected choose object > crop area > make...
...to release a crop area choose object > crop area > release...
...you know it is a crop area when you can't select the trim marks and delete them...
Andrew