Glossary of Printing Terms:
Trim

1. The process of cutting the product to its finished size.

The excess that is cut off is also referred to as the trim.

1. Combining various roll sizes to be slit from a full width roll from the paper machine so that an acceptable percentage of the salable width will be used.

2. The edge of the page of a printed product that actually extends beyond the planned dimensions of the final product.

This trim enables all the pages of a book or magazine to be cut to the same size in the final processing stages.