javascript 如何打印pdf？
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How to print a pdf?
提问by The Dark Knight
I have a pdf url, embedded in a rectangular area of an iframe. I am trying to print it on click of a button . My code looks like this :
我有一个 pdf url，嵌入在 iframe 的矩形区域中。我试图通过单击按钮来打印它。我的代码如下所示：
JavaScript to print :
要打印的 JavaScript：
function printPDF(pdfUrl)
{
var w = window.open(pdfUrl);
w.print();
w.close();
}
HTML-Code :
HTML代码：
<table>
<tr>
<td><input type="submit" value="Print"
name="Submit" id="printbtn"
onclick="printPDF('http://www.irs.gov/pub/irs-pdf/fw4.pdf')" /></td>
</tr>
Now in MF it is coming like this :
现在在 MF 它是这样的：
The problem , its not working properly in chrome and IE. I have chrome 20 and IE 8. In chrome the print window gets loaded in a new tab(which is ok) but pdf does not get loaded in preview. In IE the pdf just gets opened in a new tab and print prompt does not come up.
问题，它在 chrome 和 IE 中无法正常工作。我有 chrome 20 和 IE 8。在 chrome 中，打印窗口被加载到一个新选项卡中（这没问题），但 pdf 没有在预览中加载。在 IE 中，pdf 只是在新选项卡中打开，并且没有出现打印提示。
Before any one asks me, pdf might have inherent print functionality. but the pdfs that i am processing need to have a print button. People, kindly help me out here. Is there a solution, which is applicable in all the 3 browsers .
在任何人问我之前，pdf 可能具有固有的打印功能。但是我正在处理的 pdf 需要有一个打印按钮。人们，请在这里帮助我。是否有解决方案，适用于所有 3 个浏览器。
采纳答案by The Dark Knight
Folks, just got a solution , which works fine for me .
伙计们，刚刚得到一个解决方案，这对我来说很好用。
function printPage(htmlPage)
{
var w = window.open("about:blank");
w.document.write(htmlPage);
if (navigator.appName == 'Microsoft Internet Explorer') window.print();
else w.print();
}
So, if it is MSIE, then we can just use : window.print();
所以，如果是 MSIE，那么我们就可以使用：window.print();
