Represents the "L" entry of the media criteria dictionary object.

It is an optional entry defined as part of the PDF 1.0 specification.

It contains an array which contains strings, representing PDF string objects.

For definitive details see:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 268, page 490.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 279, page 614.

The L entry holds an array of language tags listing acceptable content languages. The rendition is accepted only if the media content language matches one of the listed tags.