This tool allows you to resize all selected text and dimension entities in the current block relative to the extents of the current layer.
Before activating the tool select all the entities you wish to be considered using any of the normal entity selection methods.
On activating the tool the Auto Scale Text form appears.
Impact calculates the extents of the current layer, and uses the smaller value of the x and y extents when calculating the scale. The text width will be the layer extents divided by the given scale.
Related topics: Selecting