Operation Manual

Cropping Images with the Crop Controls
You use the Crop adjustment controls when an extra level of precision is required. For
example, if a client wants an image cropped to a precise dimension that is different from
the standard aspect ratios, you use the Crop controls.
Aperture uses a simple coordinate system to position the Crop overlay on the image. You
simply set x and y coordinates to specify the position of the bottom-left corner of the
crop. The x-coordinate moves the bottom-left corner of the crop horizontally, and the
y-coordinate moves the bottom-left corner of the crop vertically. Then you set the width
and height to determine the area within the crop.
To set crop dimensions using the Crop adjustment controls
1 Select an image.
2 If you wish, use the Crop tool to place a rough crop on the image.
3 If the Crop controls are not shown in the Adjustments inspector or the Adjustments pane
of the Inspector HUD, choose Crop from the Adjustments pop-up menu.
4 In the Crop area of the Adjustments inspector or the Adjustments pane of the Inspector
HUD, click the X value slider’s left or right arrow, or double-click the number and enter a
new number, to set the horizontal position of the bottom-left corner of the Crop overlay.
The X and Y value sliders
control the position of the
bottom-left corner of the
crop on the original image.
Use the Width and Height
value sliders to adjust the size
of the area within the crop.
The X value is measured in pixels, and as the value increases, the Crop overlay moves to
the right.
5 Specify the vertical position of the bottom-left corner of the crop using the Y value slider.
The Y value is measured in pixels, and as the value increases, the Crop overlay moves up.
6 Specify the width of the crop using the Width value slider.
The width is measured in pixels, and the measurement starts at the bottom-left corner,
increasing from left to right.
7 Specify the height of the crop using the Height value slider.
The height is measured in pixels, and the measurement starts at the bottom-left corner,
increasing from bottom to top.
503Chapter 17 Making Image Adjustments