Allows your users to change font size on any SharePoint page.
BSEditor: Active Text Zoom Web Part allows your users to change Font Size on a SharePoint page based on their viewing preferences. This web part is indispensable for any administrator maining a content-rich SharePoint site. Text Zoom Web Part improves usability of your SharePoint site, increases consumption of information, and eliminates waste associated with cluttered or overwhelming pages.

As screen resolution continues to increase, one of the main complaints you are likely to hear from the users is small font size. At the same time, certain users of your site may wish for even more information to be added to the site, which makes the site even more crowded and less usable for the first group of users. To satisfy both groups, all you need to do is provide a way for users to adjust the font size on the page and thus eliminate any Readability-related complaints.

NOTE: this web part allows you to specify custom icons for adjusting font size: increase, decrease, reset. you can free download SharePoint Text Zoom Web Part 2.1 now.