Canon DR-S130 User Manual page 80

When you want to make lines and text in scanned images
thicker or thinner
Drag the [Character Emphasis] slider in the [Image processing] tab to
make lines and text in the scanned images thicker or thinner.
Click [Image processing], and in the dialog box that appears adjust
letter and line thickness settings.
When you want to reverse black and white in scanned
images
Select [Reverse Image] on the [Image control] tab sheet. This outputs
scanned images with black and white reversed.
Click [Image processing], and then set [Invert Image] to [ON] in the
dialog box that appears.
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