Package com.itextpdf.kernel.pdf.layer
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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.