User Guide

ACDSee™ Pro User Guide
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3Click Automatic Cropping.
4 Do one of the following:
•Click Apply to apply your changes and set options on another tab in the Rotate/Flip tool.
•Click Done to apply your changes and close the tool.
•Click Cancel to discard all changes and close the tool.
Correcting perspective distortion
You can use the Perspective Correction tool to correct perspective distortion in digital photographs.
Perspective distortion is caused by wide-angle and telephoto lenses, which distort the perspective of
large or far-away objects. For example, if you take a photo of a tall building, the building may appear
to be narrower at the top even though the building is the same width from top to bottom.
To correct perspective distortion:
1 In Edit Mode, on the Edit Panel, click Lens Correction.
2 On the Edit Panel, click Perspective Correction.
3 An outline displays around the image. The outline has handles at all four corners, and in the
middle of all the sides. Drag the handles to change the perspective.
4 Set the options as described below.
5 Do one of the following:
•Click Done to apply your changes and close the tool.
•Click Cancel to discard all changes and close the tool.
Perspective Correction options
Background color When you correct distortion in a photo, the edges of the photo may
bulge outwards or shrink inwards. Use the Background color
options to fill gaps in the corners or sides of a corrected photo. Select
Image if you want to fill gaps in the corners or sides of a corrected
photo by placing the uncorrected photo in the background. This is
useful if the gaps are small.
Show Grid Select this option if you want to display a grid over the photo while
you correct distortion. This is useful if you want to assess whether
objects in the photo are straight.