fpoller

Allows for resizing of tag cloud font sizes from within the admin panel.
Gives two configuration options for the tag cloud
<ul>
<li>Smallest size</li>
<li>Largest size</li>
</ul>
and adjusts the font sizes accordingly.

Resize tag cloud

Allows for resizing of tag cloud font sizes from within the admin panel.

chandra sekhar Gudavalli

This plugin will enable increase the font size of the page for better reading experience 
Once we activate this plugin, it will automatically display a widget in “Available Widgets” section.

Simple Zoomer

This plugin will enable increase the font size of the page for better reading experience.

Resize tag cloud vs Simple Zoomer