public void setExtractedCharacters(java.util.Collection<ExtractedCharactersListItem> extractedCharacters) {
        if (extractedCharacters == null) {
            this.extractedCharacters = null;
            return;
        }

        this.extractedCharacters = new java.util.ArrayList<ExtractedCharactersListItem>(extractedCharacters);
    }
<p>
List of pages in the document, with the number of characters extracted from each page.
</p>

@param extractedCharacters
       List of pages in the document, with the number of characters extracted from each page.
aws-java-sdk-comprehend/src/main/java/com/amazonaws/services/comprehend/model/DocumentMetadata.java