Scaling - Canon ColorPASS-Z5000 Color Manual

A
A-12 Desktop Color Primer

Scaling

Ideally, each raster image should be saved at the actual size, and it will be placed into
the document at the optimal resolution for the print device. If the image resolution is
correct for the print device, there is no quality advantage to be gained by scaling an
image down to a percentage of its actual size. If you scale a large image down to a
percentage of its actual size, you incur unnecessary file transfer time because the image
data for the entire large image is sent to the printer. If an image is placed multiple times
at markedly different sizes in a document, save a separate version of the image at the
correct size for each placement.
If you need to place an image at greater than 100% in a document, remember that the
output image resolution is affected. For example, if you scale a 200 ppi image to
200%, the image is printed at 100 ppi.