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Nitro PDF Pro
JavaScript-objecten

OCG object

This object provides support for Optional Content Groups. OCGs hold a collection of graphical objects, and are known as layers. You can dynamically switch properties of layers to make them visible or invisible to provide navigation in a PDF document.

For more information, see The Layers Pane.

Properties & Methods

The OCG object supports all properties and methods included in the Acrobat JavaScript specification.

Example:

Turns an OCG named ‘Overlay’ on (to turn it off, just change true to false in JavaScript code).

function turnOverlayOCG(doc) { 
var ocgArray = doc.getOCGs();
for(var i=0; i<ocgArray.length){
if(ocgArray[i].name == Overlay){
ocgArray[i].state = true;
}
}
}

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