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Print pdf from iframe

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旧时难觅i
旧时难觅i 2021-01-23 10:28

I dynamically create a pdf in a iframe:

and try to print from it:

w
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2条回答
  • 情歌与酒
    2021-01-23 11:03

    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

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  • -上瘾入骨i
    2021-01-23 11:05 
    <!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>
<strike>funny</strike>.

    <iframe src="file_to_print.pdf" class="frameSet" type="application/pdf" runat="server" name="I5" scrolling="yes" width="100%" height="400">  </iframe>

</body>
</html>
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