Rimaz Rauf

This plugin allows you to append a signature after every post. You just have to import the edited image to your media library and configure it in the Signature menu, Each author can have their own signature, and it is easy to use. You just need to include a short code in to your post.
Expert developers can place the short code in the template itself.
How to Use:
<ol>
<li>
Create a New Post under Rim Slider
</li>
<li>
Add the image links in the fields then publish it
</li>
<li>
Use the short code [rim_sig id=’1′ /]
</li>
</ol>
<ul>
<li>Replace the ID to your post id.</li>
</ul>
<h3>Further Information</h3>
Visit Me http://www.rimazrauf.com

Rim Signature

This plugin allows you to append a signature after every post. You just have to import the edited image to your media library and configure it in the  …

David Anderson / Team Updraft

This plugin adds a configurable signature to all outgoing emails from your WordPress site.
<h3>License</h3>
Copyright 2012- David Anderson
MIT License:
Permission is hereby granted, free of charge, to any person obtaining 
a copy of this software and associated documentation files (the 
“Software”), to deal in the Software without restriction, including 
without limitation the rights to use, copy, modify, merge, publish, 
distribute, sublicense, and/or sell copies of the Software, and to 
permit persons to whom the Software is furnished to do so, subject to 
the following conditions:
The above copyright notice and this permission notice shall be 
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, 
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Add Email Signature

This plugin adds a configurable signature to all outgoing emails from your WordPress site.

Rim Signature vs Add Email Signature