Canon MX870 Series User Manual page 605

Inverts the image horizontally.
(Trimming)
Trimming is the act of selecting the area you want to keep in a photo and discarding the rest. In
the displayed window, drag the white frame to specify the trimming area. Move the cursor inside
the white frame and drag to move the trimming area.
Note
Place the main subjects along the broken white lines or at the intersections to create a
balanced image.
(Enlarge)
Enlarges the displayed image.
(Reduce)
Reduces the displayed image.
(Full-screen)
Displays the entire image in Preview.
(Compare)
Opens a window in which you can compare the images before and after the correction/
enhancement side by side.
The source image appears on the left and the corrected image appears on the right.
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