You open the Crop Area Options
dialog box by double-clicking the Crop Area tool. You can also specify
many of these options in the Control panel when the Crop Area tool
is active.
Preset
Specifies crop area dimensions. These presets set the ruler
Pixel Aspect Ratio appropriately for the specified output.
Width and Height
Specifies the size of the crop area.
Constrain Proportions
Keeps the aspect ratio of the crop area intact if you manually
resize the crop area.
X: and Y: Position
Specifies the position of the crop area according to Illustrator’s
work area rulers. To view these rulers, choose View >
Show Rulers.
Show Center Mark
Displays a point in the center of the crop area.
Show Cross Hairs
Displays cross lines through the center of each side of the crop
area.
Show Video Safe Areas
Displays guides that represent the areas that fall inside the
viewable area of video. You want to keep all text and art that must
be viewable to users inside the video safe areas.
Show Screen Edge
Displays guides that represent the edge of the video screen.
Show Crop Area Rulers
Displays rulers around the crop area. The zero point of these
rulers is in the upper-left corner, as with video rulers. The dimensions reflected
are determined by the value in the Ruler Pixel Aspect Ratio box.
Ruler Pixel Aspect Ratio
Specifies the pixel aspect ratio used for the rulers.
Fade Region Outside Crop Area
Displays the area outside of the crop area a darker shade
than the area inside the crop area when the Crop tool is active.
Update While Dragging
Keeps the area outside of the crop area darker as you drag
to resize the crop area. If this is not selected, the outside area
displays in the same color as inside the crop area while resizing.