Represents the "Unix" entry of the related file set dictionary object.

It is an optional entry defined as part of the PDF 1.3 specification. It was marked obsolescent in PDF 1.7 and deprecated in PDF 2.0.

It contains an array which contains Elements.

For definitive details see:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; page 103.

The Unix entry in a related file set maps the Unix path key to an array of POSIX path strings for related files. This is a legacy entry retained for compatibility.