User Guide

ACDSee Pro 3 User Guide
5. Click Exposure Warning to make overexposed and underexposed pixels visible. Overexposed pixels turn red, under-
exposed pixels turn green.
6. Do one of the following:
Click Done to apply your changes and close the Auto Exposure tool.
Click Cancel to discard all changes and close the tool.
Click Reset to clear your changes and reset to default settings. If you saved your changes, you cannot reset your settings.
If you want to discard only the Edit settings, select File | Restore to Develop.
Adjusting tone curves
You can use the Curves tool to change the tonal range of an image. Select the RGB color channel to adjust the entire range of the
image, or select a specific color.
You can save your options as a preset for future use.
To adjust the brightness curves in an image:
1. In Process mode, click Edit.
2. In the Exposure/Lighting group, click Tone Curves.
3. Set the options as described below.
4. Do one of the following:
Click Apply to apply your changes.
Click Done to apply your changes and close the Curves tool.
Click Cancel to discard all changes and close the tool.
Click Reset to clear your changes and reset to default settings. If you saved your changes, you cannot reset your settings.
If you want to discard only the Edit settings, select File | Restore to Develop.
Curves options
Channel Specifies the color channels to adjust.
Show Histogram Toggles the histogram display on and off.
Histogram Displays a graphic of the color information levels in the image, based on the selected channel. Click
and drag the line to manipulate the curve. Each time you click the curve, a new node is added. You can
drag the nodes up and down the curve. To remove a node, drag the node up and out of the graph, or
down and out of the graph.
Exposure warning Highlights overexposed and underexposed areas of the image. Overexposed pixels turn red,
underexposed pixels turn green.
Adjusting lighting
You can use the Lighting tool to adjust areas in an image that are too dark or too light, without affecting other areas of the photo.
You can also simultaneously lighten dark areas that are too dark, and darken areas that are too bright. Examples would be a photo of
a person silhouetted against a bright background like the sea, or a window. In fact, most photos taken on a dull day, or with a flash,
can be improved in various ways with fine adjustments.
You can save your settings as a preset to use again.
The Lighting tool is very versatile. There are 3 tabs, each allows you to achieve good results in different ways. In addition, there are
several keyboard and mouse shortcuts that allow you to make adjustments on specific areas of the photo itself.
Basics tab: Is for very quick and easy adjustments using just two sliders. ACDSee Pro analyses the photo and varies the
adjustment throughout the image automatically. For example, darker images are brightened more. By clicking the Auto but-
ton, you can have ACDSee Pro fully analyze the photo and set the slider positions automatically. You can also click directly on
an area of the image to generate automatic settings optimal for that area (usually the subject of the photo).
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