> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/android/layers-ocgs/add-layer.md).

# Add a new PDF Layer in Android

Learn how to add PDF layers (OCG) to your documents with our comprehensive guide. Get full sample code for creating, extracting, and rendering PDF layers. The Apryse Android SDK streamlines secure doc

To add a PDF layer or OCG (optional content group) to a new document.

{% tabs %}
{% tab title="Java" %}
{% code lineNumbers="true" %}

```java
PDFDoc doc = new PDFDoc();
ElementBuilder builder = new ElementBuilder(); // ElementBuilder is used to build new Element objects
ElementWriter writer = new ElementWriter(); // ElementWriter is used to write Elements to the page

// Create a layer
Group image_layer = Group.create(doc, "Image Layer");
Config cfg = Config.create(doc, true);
cfg.setName("Default");

// Add the new OCG to the list of layers that should appear in PDF viewer GUI.
Obj layer_order_array = doc.createIndirectArray();
cfg.setOrder(layer_order_array);
layer_order_array.pushBack(image_layer.getSDFObj());

// Start a new page
Page page = doc.pageCreate();
writer.begin(page); // Begin writing to the page

// Add new content to the page and associate it with one of the layers.
Image img = Image.create(doc.getSDFDoc(), imagename);
img.getSDFObj().put("OC", image_layer.getSDFObj());
writer.writePlacedElement(builder.createImage(img, 300, 600, 200, -150));
writer.end();    // save changes to the current page
doc.pagePushBack(page);
```

{% endcode %}
{% endtab %}

{% tab title="Kotlin" %}
{% code lineNumbers="true" %}

```kotlin
val doc = PDFDoc()
val builder = ElementBuilder() // ElementBuilder is used to build new Element objects
val writer = ElementWriter() // ElementWriter is used to write Elements to the page

// Create a layer
val image_layer = Group.create(doc, "Image Layer")
var cfg: Config? = Config.create(doc, true)
cfg!!.name = "Default"

// Add the new OCG to the list of layers that should appear in PDF viewer GUI.
var layer_order_array: Obj? = doc.createIndirectArray()
cfg.order = layer_order_array!!
layer_order_array.pushBack(image_layer.sdfObj)

// Start a new page
val page = doc.pageCreate()
writer.begin(page) // Begin writing to the page

// Add new content to the page and associate it with one of the layers.
val img = Image.create(doc.sdfDoc, imagename)
img.getSDFObj().put("OC", image_layer)
writer.writePlacedElement(builder.createImage(img, 300.0, 600.0, 200.0, -150.0))
writer.end()   // save changes to the current page
doc.pagePushBack(page)
```

{% endcode %}
{% endtab %}
{% endtabs %}

[PDF layers (OCG)](/android/get-started/samples.md#pdflayers) Full sample code which demonstrates how to create, extract, render PDF layers.


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