3sheep

The plugin allows you maintain a number of separate signatures that can be added into posts and pages using short codes.
You can use ‘Number of Signatures’ option to set the number of available signatures. You can then enter each signature using text and variables to add author information. The available variables include:
<ul>
<li>%LOGIN% – Login name</li>
<li>%FIRST% – First name</li>
<li>%LAST% – Last name</li>
<li>%NICK% – Nickname</li>
<li>%EMAIL% – Email address</li>
<li>%URL% – Website</li>
<li>%DESC% – Description/Bio</li>
</ul>
To include a signature into a page or post use the shortcode shown next to the signaure (e.g. [tssig id=”2″]).

3 Sheep Signatures

Allows adding a custom signatures to posts and pages using shortcodes.

Patryk

Add custom content to post and/or page (top/bottom). You may use text, HTML, Shortcodes and JavaScript. Simple, but work…

PRyC WP: Add custom content to post and page (top/bottom)

Works exactly as described. Does exactly what I need it to do. Adds custom content to all posts at the bottom and/or top, which is perfect to keep old posts updated with current affiliate links on my blog! Excellent! You can also add content to the top/bottom of pages. Does not add content to the excerpt (rightly so).

Only downside is that there is no visual editor. Not a show stopper for me though. :)

Does exactly what I need it to do

Add custom content to post and/or page (top/bottom). You may use text, HTML, Shortcodes and JavaScript. Simple, but work...

3 Sheep Signatures vs PRyC WP: Add custom content to post and page (top/bottom)