Error while exporting Crystal Reports to PDF using Java SDK

Hi,

I wrote a Java Application using BO Java SDK for downloading and exporting the crystal reports published in Native format to PDF format from server.

During this process I am getting error while trying to download files larger than 30 MB.

We have few published reports of 4000+ pages.

As of now I am reading each report and exporting it.

I would like to know is there anyway i can split large files into multiple PDF files and later i will merge them into single report.

Let me know if any details requires for this issue.

Thanks

Janardhan