Assembler Service is failing

Hi,

I am new to ADEP LIVECYCLE. I have used a DDX script for merging comments on a PDF.

DDX used:

<DDX xmlns="http://ns.adobe.com/DDX/1.0/">

  <PDF result="Result_DOC">

    <PDF source="PDF_Source"/>

    <Comments source="XFDF_Document"/>

  </PDF>

</DDX>

I have tried with the Preview Result option in the DDX.

I am getting a Error message as follows:

Preview of DDX failed:

com.adobe.idp.DocumentError: com.adobe.internal.pdftoolkit.core.exceptions.PDFCosParseException: Number in document is either greater than 2,147,483,647 OR less than -2,147,483,648

Please suggest me.

Thanks in advance........