You can show crop marks in Word, but you cannot print them. If you open your document in Microsoft Publisher you can print printer’s marks, such as crop marks, in your printed copy.
Publisher is included in Office Standard, Professional, and Professional Plus. If you’re not familiar with it, here's how to get started.. It’s useful for creating print-ready documents like newsletters, marketing brochures, business cards, company reports and portfolios, catalogs, greeting cards, and other media.
Crop marks are corner marks that indicate the trim size of a printed document—meaning the size to which the printed document would be cut. So, for example, if you create a 5” x 7” page on 8.5” x 11” sheet of paper, crop marks show you where to cut to the final 5” x 7” size.
If you really wish Word crop marks were printable, use the comments to let us know so we can make the case to Word’s development team.