Canon BJC-S830D Application Manual page 100

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Click the Apply button.
The custom paper has been registered, and the layout selection wizard terminates.
The Print window appears where the selected photos are arranged so that they fit
the paper size you specified.
Page Artwork
When the Canon perforated paper printing option is selected, you cannot
change the location and size of the images although the image cropping and text
insertion features are available.
Canon Perforated Paper Printing 100