PDF output in BIRT

Hi All,

In our organization we use BIRT reporting engine to get report outputs from LN.
In one report, i have used code39 barcode to print on the BIRT report.
Users print the report in webtop and then export it to PDF.
Both, webtop and PDF were showing barcode without any issue.

However, after I restarted the LN server users are unable to see the barcode in PDF.
It can be seen in other exported formats (excel, word, html), but not PDF.
I have restarted the server several time before, but this issue never happened.

I have tried changing the barcode font, designing a new report, but nothing seems to get work.

Has anyone encountered a situation like this?

Thanks in advance,
Tushar Jain.