Nested Form XObjects note. (#629)

Author: YoanKar

libraries/radpdfprocessing/model/form.md

@@ -65,6 +65,8 @@ __Example 2__ demonstrates how to use one of the factory methods of the __Conten
           
 >You can add content to the form by setting its FormSource property. The API allows you also to directly pass the FormSource to a method which will automatically generate a form in the document content. For more information on this topic, check the [FormSource]({%slug radpdfprocessing-model-formsource-overview%}) article.
 
+>There’s no nesting limit for [Form XObjects[({%slug radpdfprocessing-model-form%})], but PDF viewers may restrict depth to avoid memory or performance issues and improve responsiveness, which can affect rendering depending on the viewer.
+
 
 ### Modifying Form Properties
 

libraries/radpdfprocessing/model/formsource/overview.md

@@ -43,6 +43,8 @@ The FormSource class inherits from the IContentRootElement interface. This inher
 
 **Example 2** shows you how you can insert a content into a FormSource object using FixedContentEditor.
 
+>There’s no nesting limit for [Form XObjects[({%slug radpdfprocessing-model-form%})], but PDF viewers may restrict depth to avoid memory or performance issues and improve responsiveness, which can affect rendering depending on the viewer.
+
 #### __[C#] Example 2: Add content to a FormSource__
 
 {{region cs-radpdfprocessing-model-formsource_1}}