Hello,
For open pdf in a new browser tab, you must open realstatemanager.html.php file.
Please, find area code like this:
<a onclick="window.open(this.href,'win2','status=no,toolbar=no,scrollbars=yes,titlebar=no,menubar=no,resizable=yes,width=640,height=480,directories=no,location=no'
; return false;" rel="nofollow" href="<?php echo $mosConfig_live_site; ?>/index.php?option=com_realestatemanager&task=view&id=<?php echo $id; ?>&catid=<?php echo $catid; ?>&itemid=<?php echo $Itemid; ?>&printItem=pdf" title="PDF" rel="nofollow">
<img src="./components/com_realestatemanager/images/pdf_button.png" alt="PDF" />
</a>
and change him to this code:
<a rel="nofollow" href="<?php echo $mosConfig_live_site; ?>/index.php?option=com_realestatemanager&task=view&id=<?php echo $id; ?>&catid=<?php echo $catid; ?>&itemid=<?php echo $Itemid; ?>&printItem=pdf" title="PDF" target="_blank" rel="nofollow">
<img src="./components/com_realestatemanager/images/pdf_button.png" alt="PDF" />
</a>
It should be noted that this feature more dependent on your browser and his settings
Thanks,
OrdaSoft team