<p><a href="http://wincert.net/wp-content/uploads/2015/01/Adobe-acrobat2.jpg"><img class="alignnone size-full wp-image-612" src="http://wincert.net/wp-content/uploads/2015/01/Adobe-acrobat2.jpg" alt="Adobe-acrobat2 box" width="720" height="340" /></a></p>
<p>If you want to prevent opening of PDF documents within the browser you can do this manually on each machine by opening Internet Explorer | Settings | Manage add-ons</p>
<p>As you can see Adobe PDF add-on is not visible, not even if you select to show all add-ons</p>
<p>Therefore, in the left pane under <strong>Show</strong> select &#8216;<strong>Run without permission</strong>&#8216;</p>
<p><img class=" size-full wp-image-435" src="http://wincert.net/wp-content/uploads/2013/02/adobe_addon_1.PNG" alt="" width="399" height="307" border="0" /></p>
<p>Select <strong>Adobe Reader</strong> and click <strong>Disable</strong>.</p>
<p><!--more--></p>
<p>If you want to achieve this for all users using Group Policy here&#8217;s how to do it:</p>
<p>Download ADM template for Adobe Reader XI (This is the version I am using, if you need other version, you can find it on Adobe web site).</p>
<p><a title="ReaderADMTemplate.zip" href="ftp://ftp.adobe.com/pub/adobe/reader/win/11.x/11.0.00/misc/ReaderADMTemplate.zip" target="_blank">ftp://ftp.adobe.com/pub/adobe/reader/win/11.x/11.0.00/misc/ReaderADMTemplate.zip</a></p>
<p>Create a new GPO and import Adobe XI ADM template</p>
<p>Navigate to:</p>
<p><strong>Computer Configuration | Administrative Templates | Adobe Reader XI | Preferences | General</strong></p>
<p>In the Right pane set <strong>Display PDFs</strong> in browser Setting to <strong>Disabled</strong>.</p>
<p><img class=" size-full wp-image-436" src="http://wincert.net/wp-content/uploads/2013/02/adobe_addon_2.PNG" alt="" width="438" height="175" border="0" /></p>
<p>Close Group Policy editor.</p>
<p>Run <strong>gpupdate /force</strong> on the target machine and re-run Internet Explorer.</p>
<p>If you need additional help, please post your comment below.</p>