How to append same string to multi pdf name files
<p>I have a bunch of files and I need to append a string to the end of their names. I tried few thing, but they didn't work for me.</p>

<p>Example for what I want:</p>

<pre><code> aaa.pdf   -----&gt;  aaa2016
 bbb.pdf   -----&gt;  bbb2016
 ccc.pdf   -----&gt;  ccc2016
</code></pre>

<p>I need some batch or something like that that do it. Any ideas for my problem?</p>