# Adapter
<a name="API_Adapter"></a>

An adapter selected for use when analyzing documents. Contains an adapter ID and a version number. Contains information on pages selected for analysis when analyzing documents asychronously.

## Contents
<a name="API_Adapter_Contents"></a>

 ** AdapterId **   <a name="Textract-Type-Adapter-AdapterId"></a>
A unique identifier for the adapter resource.  
Type: String  
Length Constraints: Minimum length of 12. Maximum length of 1011.  
Required: Yes

 ** Version **   <a name="Textract-Type-Adapter-Version"></a>
A string that identifies the version of the adapter.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Required: Yes

 ** Pages **   <a name="Textract-Type-Adapter-Pages"></a>
Pages is a parameter that the user inputs to specify which pages to apply an adapter to. The following is a list of rules for using this parameter.  
+ If a page is not specified, it is set to `["1"]` by default.
+ The following characters are allowed in the parameter's string: `0 1 2 3 4 5 6 7 8 9 - *`. No whitespace is allowed.
+ When using \$1 to indicate all pages, it must be the only element in the list.
+ You can use page intervals, such as `["1-3", "1-1", "4-*"]`. Where `*` indicates last page of document.
+ Specified pages must be greater than 0 and less than or equal to the number of pages in the document.
Type: Array of strings  
Array Members: Minimum number of 1 item.  
Length Constraints: Minimum length of 1. Maximum length of 9.  
Pattern: `^[0-9\*\-]+$`   
Required: No

## See Also
<a name="API_Adapter_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/textract-2018-06-27/Adapter) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/textract-2018-06-27/Adapter) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/textract-2018-06-27/Adapter)