UMAX Technologies AstraNET e5420 Owner's Manual page 26

You can also specify a custom scale factor by choosing the Custom option from the Scaling drop down
menu. See the Custom Scaling Settings section for more information about specifying a custom scale
factor.
Using Custom Scale Settings
You can specify custom scaling settings to use when you scan. To define the custom scaling settings:
1. Choose the Custom... option from the Scaling drop down menu. The Custom Scaling window opens.
2. Enter the desired scale factor in either the Width or Height text box. When locked,( ) width and
height entries are identical. The width and height fields are dynamic, updating one filed automatically
changes the other field. If the scale output size is unlocked ( ), you can set the width and height
output dimensions individually.
3. To change the unit measure, click on the down arrow next to Height and/or Width text boxes to display
the possible settings. You can choose from Inch, Centimeter, Pixel, or Percent.
4. Click OK.
Using the Auto Adjustment Feature
Auto Adjustment provides a simple way to adjust the light and dark values of a color or grayscale image
you want to scan.
To automatically adjust the light and dark values:
1. Place the item you want to scan on the scanner object glass.
2. Click the Preview button from the VistaScan Advanced window.
3. Select an area that you want to adjust using the Frame tool.
You can edit the Preview image before scanning the final image using the "Zoom Tool" and the
"Frame Selection Tool". To find out more about how to use these tools, click on the user tips text that
appears when your cursor pauses over the tool.
NOTE: To use VistaScan online help you must have a browser installed on the system.
4. Click the Auto Adjustment check box. The selected area is adjusted and the preview image refreshes,
displaying the results you can expect when you perform the final scan.
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