Layers etc....

You cannot add a layer (OCG) to the PDF when it is opened. Don't even think about it. This cannot be done in Reader, and there is always the possibility that JavaScript will be turned off. The OCG has to be there in the first place.

Take a look at this article:
http://www.acrobatusers.com/tutorials/2006/create_use_layers

And the License Dialog sample file on this page:
http://www.windjack.com/products/acrodialogs.php

Thom Parker
The source for PDF Scripting Info
[url=http://www.pdfScripting.com]pdfscripting.com[/url]

The Acrobat JavaScript Reference, Use it Early and Often
[url=http://www.adobe.com/devnet/acrobat/javascript.php]http://www.adobe.com/devnet/acrobat/javascript.php[/url]

Then most important JavaScript Development tool in Acrobat
[url=http://www.acrobatusers.com/tutorials/2006/javascript_console][b]The Console Window[/b][/url]

Hi,

I have a multi-layered pdf with layers named "Base" "layer1", "layer2", "layer3", "layer4". I wanted to turn off all layers except "Base" and "layer1" and then re-save the file. Could anyone point me in the right direction of a JavaScript to do this please.
Thanks in advance
Ian.

Take a look at this article:
http://www.acrobatusers.com/tutorials/2 … use_layers


Thom Parker
The source for PDF Scripting Info
[url=http://www.pdfScripting.com]pdfscripting.com[/url]

The Acrobat JavaScript Reference, Use it Early and Often
[url=http://www.adobe.com/devnet/acrobat/javascript.php]http://www.adobe.com/devnet/acrobat/javascript.php[/url]

Then most important JavaScript Development tool in Acrobat
[url=http://www.acrobatusers.com/tutorials/2006/javascript_console][b]The Console Window[/b][/url]

Thanks Thom,
I've managed to identify the layers I want to use in the final PDF using your excellent documentation, but am unsure of how to merge these into one layer ie., "Base" and "Layer1" into one layer, then resave the PDF file.
Could you help please?
Thanks
Ian

From JavaScript you cannot merge layers. Too bad, this would be a great feature for automation scripting:( This can only be done from the Layers Panel in Acrobat Professional.

Thom Parker
The source for PDF Scripting Info
[url=http://www.pdfScripting.com]pdfscripting.com[/url]

The Acrobat JavaScript Reference, Use it Early and Often
[url=http://www.adobe.com/devnet/acrobat/javascript.php]http://www.adobe.com/devnet/acrobat/javascript.php[/url]

Then most important JavaScript Development tool in Acrobat
[url=http://www.acrobatusers.com/tutorials/2006/javascript_console][b]The Console Window[/b][/url]

Thanks Thom.

I need some guidance then if possible. I can get away with just hiding the layers and not merging, but how do I do this? I've tried the below script

FindOCG("NZ").state = false;
FindOCG("AUS").state = false;
FindOCG("USA").state = false;

But I get a syntax error

What specifically is reported for the Syntax error? The code in your post is correct. Is the "FindOCG()" function defined? Is the error inside this function?

Thom Parker
The source for PDF Scripting Info
[url=http://www.pdfScripting.com]pdfscripting.com[/url]

The Acrobat JavaScript Reference, Use it Early and Often
[url=http://www.adobe.com/devnet/acrobat/javascript.php]http://www.adobe.com/devnet/acrobat/javascript.php[/url]

Then most important JavaScript Development tool in Acrobat
[url=http://www.acrobatusers.com/tutorials/2006/javascript_console][b]The Console Window[/b][/url]

Is it still the case, that you can't use JavaScript to merge layers? I've seen this code around:

sourcename.name = targetLayer.name;
sourcename.initState = targetLayer.initState;
sourcename.intent = targetLayer.intent;
sourcename.locked = targetLayer.locked;
sourcename.state = targetLayer.state;

but when I actually get it to run, I end up with a bunch of layers all having the same name, they're not actually merged.


Can I do this with JavaScript?

CLM:

OCGs cannot be created, merged or deleted with JavaScript in Acrobat X or any previous version. You can import and merge layers using the UI tools in Acrobat Pro, but can only delete and rearrange content within layers using plugins such as ARTS PDF Aerialist.

All your script does is copy the properties of one OCG to another, but they stay as two independent layers.