2013

Table Of Contents
Control the Display of Layers in a PDF Underlay
You can turn layers on and off in a PDF underlay.
By default, all visible layers of an underlay are turned on when you attach the
file. It is usually convenient to turn off any unneeded layers to reduce the
visual complexity of your work.
Use the PDFLAYERS or ULAYERS command, Underlay Layers button on the
PDF Underlay visor, or right-click a selected underlay and click View PDF
Layers.
NOTE If the Underlay Layers dialog box is empty, there are no layers in the
underlay.
You can use the Properties Inspector to determine whether any layers are
turned off in an underlay.
If no layers are turned off, the Layer Display Override property is set to
None.
If at least one layer is turned off, the Layer Display Override property is
set to Applied.
Modify the Position, Scale, or Rotation of a PDF Under-
lay
You specify a PDF underlays position, scale, or rotation when you attach an
underlay file. You can also modify these settings later during the drafting
process.
By default, the insertion point of a file is 0,0,0, its scale factor is 1, and its
rotation angle is 0. You can use general modify commands such as MOVE,
SCALE, ROTATE, MIRROR, ARRAY, and so on.
Use Grips with Underlays
While underlay behavior generally mimics raster image behavior, one exception
is the way that grips work. In this case, the behavior more closely parallels
block behavior. Normally, an underlay displays only a base grip. You can use
a base grip to reposition an underlay in a drawing. If you create a clipping
boundary, additional grips display for each corner of the boundary. See Clip
Underlays
(page 675).
Work with Data in Other Formats | 673