3+Lock+vs.+Allow+Move

When an object / image is placed on the page, it can be "locked" to the page. This means that it can not be moved, rotated or resized.

Two other options you have are Allow Move and Allow Move and Rotate. Allow Move - Allows an object / image to be moved around the page, but it can not be rotated or resized. Allow Move and Rotate - Is the same as Allow Move but you have the ability to rotate the image.