Make layers name in the layers palette invisible

[yosimo]

Hi all,

on

https://acrobatusers.com/tutorials/creating-and-using-layers-ocgs-with-acrobat-javascript

Thom Parker describes, how to make hidden layers visible in the layers palette with the JS-Code:

this.getOCGs();

But how can I make the layer name in the layers palette invisible again? What is the JavaScript-Code so that I can do it vice versa or that I can undo it?

I can't find anything about this in the literature.

Thanks for a helpful tip,

Yosimo

[try67]

That code doesn't do anything on its own. It just retrieves the array of OCGs (layers) in the file.

To make a specific layer visible (or invisible) you need to access it via that array and then change its state property to true or false, resp.

I believe it's all explained in that tutorial you found.

[yosimo]

I don't want to make a specific layer invisible. I want to make the layer name in the layers palette invisible.

If I place a watermark with the watermark function of Acrobat, then I can make  the layer name in the layers palette visible with the JS-code

this.setOCGOrder(this.getOCGs());   //  (and not: this.getOCGs(); sorry, I was wrong)

But what is the code to make the layer name in the layers palette invisible again?

[try67]

That code doesn't have anything to do with showing the layers palette or making a layer's name in it hidden or visible. It just sets the order of the layers (to the current order, which is useless).

As far as I know, it's not possible to do any of those things using a script.

[yosimo]

Too bad, I was hoping I could do it with JS.

Thank you very much.

[George_Johnson]

The point is you can have an OCG that doesn't show up in the list, such as when you add a watermark. The code:

this.setOCGOrder(this.getOCGs())

has the effect of making the OCG names that aren't visible in the Layers pane visible, which then allows a user to manipulate it via the user interface.