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using javascript, i invoked a saveas dialog box, the problem is , it is only storing .html &amp;&nbsp;.doc files by default, i want to store .pdf files only<br />
<br />
the code i used is <br />
<br />
<br />
function SaveFile(fname)<br />
<br />
&nbsp;{<br />
&nbsp; &nbsp;document.execCommand('save<wbr />as', null,fname)<br />
&nbsp; }<br />
<br />
&lt;input type= &quot;button&quot; value=&quot;save&quot; onclick=&quot;SaveFile('');&quot;&gt;
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using javascript, i invoked a saveas dialog box, the problem is , it is only storing .html & .doc files by default, i want to store .pdf files only

the code i used is 


function SaveFile(fname)

 {
   document.execCommand('saveas', null,fname)
  }

<input type= "button" value="save" onclick="SaveFile('');">

how to invoke a   &quot;saveas dialog box&quot; which  should save only &quot;.pdf files&quot;

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.

how to invoke a &quot;saveas dialog box&quot; which should save only &quot;.pdf files&quot;

how to invoke a "saveas dialog box" which should save only ".pdf files"