Background image in sugarpdf custom report

Hi All Developers,

i have prepared sugarpdf custom report in my instance, it is downloaded and working fine,

i want to add one background image on my custom pdf report, i have used html background image syntax but image not showing in the report. below is my html syntax

<p style="background-image: url('img_abc.jpg');"></p>

is there any other way to insert background image in custom report

Please anybody help me and suggest how to insert background image in sugarpdf custom report.

Thanks in Advance...!