a .jrxml file is a compiled .jasper report. This file can be uploaded, from iReport, to Unified Reporter or CABI. And from UR/CABI you can run/schedule this report and define/save your report in pdf format.
1 - iReport with your report loaded in designer
2 - I created a "custom" directory to store all my customized reports
3 - Right click on your target directory and select - Add - JasperServer Report
-
4 - this will open a wizard
select the 'get source from current opened report'
In 'edit local datasource' take 'import from ireport'
5 - when you select UMP- USM - UR (or CABI)
and select "run", in the generated output you can select how to save the report.
(or you can schedule the report and mail the result in the format you want)