When adding an image to an eForm, you have two options: a diagram and a picture.
A diagram is special kind of image that uses a single picture item and overlays a number of checkboxes on top. A diagram is best used for images such as body parts so that patients can select certain areas using the checkboxes. A good example of this is the Body Pain Diagram.
A diagram is added by selecting the blue plus (+) sign at the top of the eForm editor.
A picture simply displays an image file. A picture is best used for adding a logo to your form.
A picture is added by selecting "Add Item" and then choosing "Picture" as the item type, from the dropdown menu.