Package com.itextpdf.kernel.pdf.layer

Interface Summary

Interface	Description
IPdfOCG	The interface generalizing the layer types (PdfLayer, PdfLayerMembership).

Class Summary

Class	Description
PdfLayer	An optional content group is a dictionary representing a collection of graphics that can be made visible or invisible dynamically by users of viewer applications.
PdfLayerMembership	Content typically belongs to a single optional content group, and is visible when the group is ON and invisible when it is OFF.
PdfOCProperties	This class represents /OCProperties entry if pdf catalog and manages the layers of the pdf document.
PdfVisibilityExpression	An array specifying a visibility expression, used to compute visibility of content based on a set of optional content groups.