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How to print a PDF from the browser

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天涯浪人
天涯浪人 2020-11-28 07:53

In a Web application, is it possible to force a PDF file to be printed on the client? If the browser is configured to open the PDF inside the window, I guess that calling wi

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  • 粉色の甜心
    2020-11-28 08:02

    you can use the simple amazing library printjs "http://printjs.crabbly.com" it takes PDF file and print it without showing print dialog if you need , a simple way to do it below :

     <button type="button" onclick="printJS('docs/printjs.pdf')">
    Print PDF
 </button>

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  • 悲哀的现实
    2020-11-28 08:04

    You can't print a PDF document directly from browser using Javascript. The Javascript function window.print() use the browser printing function and this is not what you need. You can achieve your aim starting the print through Java Web Start. Put your PDF document directly into the jnlp so you can run a Java program that recieve the raw PDF document as argument. Now you're running in the system and no longer in the browser, so you can directly interface with printing driver through JAVA API. This seem quite simple but really it's not because the JAVA printing API doesn't accept a file as input but a particular data structure that implements the ava.awt.print.Pageable interface.

    Exist a web service at www.pdfprint.it that do all the work for you. Here a snippet taken from the official documentation. 

    <?php

// 1. GET the jnlp file with curl

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://www.pdfprint.it/printPdf?auth=XXXX");        
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //return the transfer as a string       
$jnlp = curl_exec($ch);
curl_close($ch); 

$pdfDoc ="example.pdf";


//2. put in the jnlp your PDF document base64 encoded

$jnlp = str_replace("####", base64_encode(file_get_contents($pdfDoc)),$jnlp);


//3. echo the jnlp file 

header('Content-type: application/x-java-jnlp-file');

echo $jnlp;

    You only need to get the jnlp file, put in your PDF document and send the jnlp to the browser. The JAVA program that run the printing will be dowloaded directly from the web service. You can also set some printing options as copies, sides, and so on

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  • 太阳男子
    2020-11-28 08:07 
    <html>
<script language="javascript">
timerID = setTimeout("exPDF.print();", 1000);
</script>
<body>
<object id="exPDF" type="application/pdf" data="111.pdf" width="100%" height="500"/>
</body>
</html>
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  • 予麋鹿
    2020-11-28 08:16

    The way google docs does it is by embedding JavaScript into the PDF that tells Acrobat Reader or any other compliant reader to print it.

    You would need a PDF toolkit to do this with a random PDF.

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  • 耶瑟儿～
    2020-11-28 08:19

    similarly to taeyoung's suggestion you can use an iframe to render the pdf and then use contentWindow.print();

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  • 盖世英雄少女心
    2020-11-28 08:20

    Do you mean that you want to force the file to be sent to a printer? Are you thinking of the Law of Unintended Consequences -- the user's device isn't connected to a printer? Could be a BlackBerry, could be a laptop on wi-fi. What if the user doesn't want it to go to the default printer?

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