4. The computer-implemented method of claim 2 , further comprising: running a script to measure dimensions of corresponding bounding boxes in the first and second renderings; and automatically updating code for the document to include the dimensions.
2. The computer-implemented method of claim 1 , wherein: the predefined criteria specify an amount by which a dimension of a bounding box in the second rendering may exceed a corresponding dimension of a corresponding bounding box in the first rendering without being considered different; and the identifying comprises determining that a dimension of a bounding box for one of the plurality of textual elements of the document in the second rendering exceeds a corresponding dimension of a bounding box for one of the plurality of textual elements of the document in the first rendering by more than the amount.