Aparupa Das wrote:
>     Is there any limitation for the volume of data?

If you're trying to create a PdfPTable with 20,000 or more rows, then 
you're bound to hit into memory and performance problems. Why don't you 
work with a series of smaller tables? Why do you want to put everything 
in one table object that is kept in memory? If you add parts of the 
table gradually, you can discard those parts from memory AND the content 
of every full page will be sent to the OutputStream immediately. Now 
almost nothing is sent to the OutputStream until the 20,000 rows are 
added. That's a very bad design. Without knowing the exact problem 
(you're not even telling us if you're using Table or PdfPTable), you are 
asking for problems with a design like yours.
-- 
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