2.1.27 [ISO32000-1] Section 12.3.5, Collections

  • Article

V0027:

The specification states:

 Beginning with PDF 1.7, PDF documents may specify how a conforming reader’s user interface presents collections of file attachments, where the attachments are related in structure or content. Such a presentation is called a portable collection.

Microsoft Edge:

Specifications of user interface presentation are not supported (their presence is ignored).