(copyright law) Initialism of GNU General Public License.

A GPL linking exception modifies the GNU General Public License in a way that enables software projects which provide library code to be "linked to" the programs that use them, without applying the full terms of the GPL to the using program.

The GPL font exception clause (or GPL+FE, for short) is an optional clause that can be added to the GNU General Public License permitting digital fonts shared with that license to be embedded within a digital document file without requiring the document itself to also be shared with GPL.