Canon PIXMA MG2525 All-in-One Inkjet Printer (Black) - Manual (Page 251)

When you check this check box, the document will be reduced to fit to the paper size
when the document size is larger than the page size. The document will be printed in
the original size when the document size is smaller than the page size.
5. Complete the setup
Click Print .
When you execute print, the document will be enlarged or reduced to fit to the page
size.
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