Issue with Margin in iReport

You can try to use setBottomMargin, setTopMargin, setRightMargin, setLeftMargin methods of JasperDesign class or the same methods from JasperPrint class.

You can see the sample here.

You can also set margins in report's template, for example with help of iReport.
The snippet of report template:

<jasperReport ... language="groovy" pageWidth="595" pageHeight="842" columnWidth="593" leftMargin="1" rightMargin="1" topMargin="1" bottomMargin="1">

You can also look at the MediaPrintableArea class constructor and read this post.

UPDATED:

The another solution how to remove margins from this discussion:

    PageFormat pf = PrinterJob.getPrinterJob().defaultPage();
    Paper paper = new Paper();
    paper.setImageableArea(0, 0, paper.getWidth(), paper.getHeight()); // no margin = no scaling
    pf.setPaper(paper);

Cookies are only updated in the JavaScript environment when set by JS, or when the page loads.

localStorage was designed for this. IE8 supports it just fine, it's only the really old IE7 and below that don't. Although IE9 is Windows-Vista-and-7-only, IE8 is fine on XP so you should have no troubles asking your users who are still on archaic browsers to update.

(I can't say this enough, but IE really need an auto-updater like all other browsers...)