window.frames.pdfFrame.print();



Try this one:

function PdfUtil(url) {

    var iframe;

    var __construct = function(url) {
        iframe = getContentIframe(url);
    }

    var getContentIframe = function(url) {
        var iframe = document.createElement('iframe');
        iframe.src = url;
        return iframe;
    }

    this.display = function(parentDomElement) {
        parentDomElement.appendChild(iframe);
    }

    this.print = function() {
        try {
            iframe.contentWindow.print();
        } catch(e) {
            throw new Error("Printing failed.");
        }
    }

    __construct(url);
}

And you can use it as follows:

var pdf = new PdfUtil(PDF_URL);
pdf.display(document.getElementById('placeholder'));

document.getElementById('printBtn').onclick = function() {
    pdf.print();
}

Obviously, though PDF_URL here is a "constant", in your case it should most probably be generated.

Works perfectly with IE8 and Chrome (should work also with other browsers). Also, the OO approach makes it far more maintainable and/or reusable. Slight modifications to the actual logic might still be required to fit all your needs.




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Code snippet to Load PDF into iframe and call print. Also see: 10 JQUERY PRINT PAGE OPTIONS.

 
jQuery(document).ready(function($) {
  function print(url)
  {
      var _this = this,
          iframeId = 'iframeprint',
          $iframe = $('iframe#iframeprint');
      $iframe.attr('src', url);

      $iframe.load(function() {
          _this.callPrint(iframeId);
      });
  }

  //initiates print once content has been loaded into iframe
  function callPrint(iframeId) {
      var PDF = document.getElementById(iframeId);
      PDF.focus();
      PDF.contentWindow.print();
  }
});



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The following works for me in Firefox 11:
(das ist die #id)
window.frames.loyaltyBadge.focus();
window.frames.loyaltyBadge.print();