How to print PDF from IFRAME if src = pdf?

Question

I have an iframe which needs point directly to a PDF file (not a page with a PDF):

<iframe id="ecard-pdf" name="ecard-pdf" style="position: absolute;" src="/profile.pdf"> </iframe> 

I want to be able to print the PDF in this iFrame

I have found several solutions in other questions that do not fit my needs:

1. Require to have a function in the iframe ( https://stackoverflow.com/a/473270/1246369 )
2. Suggest focusing the frame and then performing print action on it ( https://stackoverflow.com/a/9616706/1246369 )
3. Access contentWindow of the iframe and print it ( https://stackoverflow.com/a/9617566/1246369 )
4. Variations of those

However, it seems that FireFox and IE can't do this if the iframe's src points directly to a PDF and not to a page wrapped around the PDF.

Firefox:

Instead of printing, it displays this dialog: "Prevent this page from creating additional dialogues" with "OK" and "Cancel" buttons, neither of which prints the PDF.

IE:

just ignores my attempts to print using the above methods.

Question:

How can I allow users to print the PDF in the iFrame no matter what browser they are using?

Answer 1

I have struggled a bit to find a solution that works for both IE and Chrome. This works for me:

$(function() {     var ua = window.navigator.userAgent;     var msie = ua.indexOf('MSIE ');     var trident = ua.indexOf('Trident/');     var edge = ua.indexOf('Edge/');     var url = '/url/to/file.pdf';     var pdf ='';     var style = 'position:fixed; top:0px; left:0px; bottom:0px; right:0px; width:100%; height:100%; border:none; margin:0; padding:0; overflow:hidden;';      if(msie > 0 || trident > 0 || edge > 0){         pdf = '<object data="' + url + '" name="print_frame" id="print_frame" style="' + style + '" type="application/pdf">';     }     else{         pdf ='<iframe src="' + url + '" name="print_frame" id="print_frame" style="' + style + '"></iframe>';     }      $(document.body).append(pdf);      setTimeout(function(){         window.frames["print_frame"].focus();         window.frames["print_frame"].print();     },2000); }); 

...cheers.

Answer 2

As suggested in this answer for a similar question, you could do this:

window.frames.pdfFrame.print(); 

This should solve your problem.