To create a bleed effect on your desktop printer, you need to set up your publication to print on a sheet of paper that's larger than the finished publication page. For example, if your publication page is a standard letter size, you would print it on sheets of Legal or Letter Extra paper. The print size you select will depend on the paper sizes your printer accommodates.
How?
Your selection represents the page size, not the printer sheet size.
If you need to change the page measurements, enter your changes in the Width and Height boxes.
Make sure you select a sheet size that is larger than your publication page size.
You can create a bleed with text, pictures, or any other type of object.