Thunder Page is a text analysis (research) tool allowing you to quickly find and highlight targeted words and phrases from within a document or article. Originally developed as a software to assist both job seekers and employers, it has grown to become more strong than the intended purpose of scanning job ads and resumes.
Indeed, it has evolved into perhaps the ultimate text research tool available. By allowing the end user to examine text from 2 perspectives - through keyword analysis and by word occurrence (frequency), the program gives true indication of word relevancy throughout the document.
Targeted words and phrases are assigned unique colors (user selectable) which become more and less prominent as you adjust the background shading. Of the 256 available colors, the first 48 are user selectable.

The license of this software is Free Trial Software, the price is $29.00, you can free download and get a free trial.