19. The one or more non-transitory computer-readable media as recited in claim 18 , further comprising: receiving another selection associated with the selected column of the text; and zooming-out of the selected column of the text and back to a multicolumn view of the image-based document in response to the other selection associated with the selected column of the text.
19. The one or more non-transitory computer-readable media as recited in claim 18 , further comprising: receiving another selection associated with the selected column of the text; and zooming-out of the selected column of the text and back to a multicolumn view of the image-based document in response to the other selection associated with the selected column of the text. 20. The one or more non-transitory computer-readable media as recited in claim 19 , wherein the zooming-in further includes centering the selected column of the text horizontally within the display space.