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6.9 Setting the Scan Options
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6.9.11 Compression
When [Auto], [RGB Color], or [Grayscale] is selected as described in "6.9.2 Color Mode"
(page 363), it is also possible to set the compression rate of scanned data.
For photos and images, a high compression rate can be used to create a smaller file.
Changing the compression rate affects the scanned data in the following ways.
1. On the [Scan Settings] window, select the [Save] tab.
2. Press the [Compression] button.
D The [Compression] window appears.
3. Select a compression rate.
The lower the selected compression rate is, the higher the quality of the resulting
scan will be, but at the expense of a larger file.
When PDF format is selected in "6.9.7 File Format" (page 369), [High Compression
for Color PDF] can be used.
D This returns you to the [Scan Settings] window. The selected rate is displayed to
the right of the [Compression] button.
High compression Low compression
Quality Low High
File size Small Large