5.8    Inline graphics and text-boxes

Within text documents, images, embedded objects and other drawing objects may be anchored to a paragraph, to a character, or as a character. If they are anchored to a paragraph, they appear within a paragraph at an arbitrary position. If they are anchored to or as a character,  they appear within a paragraph at exactly the character position they are anchored to or as. See section 9.2 for details on drawing objects, and section 9.2.16 for their anchoring.