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Layers

Manipulate the layers (OCGs) of your PDF documents.

OCGs ?

Optional Content Groups

Functions​

getLayers ⇒ JSON​

Get the PDF layers list.

Example​

TFTPDFGadget.callCommand({ name: 'getLayers', callback: myfunc });

Available quality options:

  • low: 65% quality
  • medium: 85% quality
  • high: 125% quality

getActiveLayers ⇒ JSON​

Get the list of layers present in current active pages.

Example​

TFTPDFGadget.callCommand({ name: 'getActiveLayers', callback: myfunc });

setLayers​

Toggle the visibility of layers.

ParamTypeDescription
layersobjectA JSON to define visiblity status of pdf's reference

Example​

TFTPDFGadget.callCommand({
  name: 'setLayers',
  args: { layers: { off: [{ num: 6, gen: 0 }], baseState: 'ON' } },
  callback: myfunc,
});

resetLayers​

Reset the layers.

Example​

TFTPDFGadget.callCommand({ name: 'resetLayers', callback: myfunc });