Print pdf from iframe

Question

I dynamically create a pdf in a iframe:

and try to print from it:

w         


        

Answer 1

It prints blank page because you're printing the iframe itself. Here is what you should do:

1. The iframe should contain EMBED tag which will load the PDF (for some reason stack overflow did not formatted code well, please see paste bin link below):

< embed src="path_to_script_which_generates.pdf" type="application/pdf" id="pdf"
width="100%" height="100%">
< /embed>

2. Then you should call the EMBED object to print the document. But since it may require some time for it to load you would need a timeout:

var doPrinting = (id){
    var pdfObject = document.getElementById(id);
    if (typeof(pdfObject.print) === 'undefined') {    
         setTimeout(function(){ doPrinting(id); }, 1000);
    } else {
        pdfObject.print();
    }
 }

 doPrinting('pdf');

Here is paste bin of the above: http://pastebin.com/s6qSTE8t