Automatic Text Summarization is the process of using computers to reduce the text content of information by extracting or composing key topics or phrases while retaining important points of the original content. This is a difficult subject in natural language processing as there is no gold standard of what a good summary should look like. Opait Text Summarizer is a free online program to summarize online Web pages as well as documents from local computers. Documents are uploaded, parsed into paragraphs, sentences and keywords, ranked and sorted using a statistical model. The most relevant sentences and keywords are then returned to the user. Opait Text Summarizer can process documents in a variety of formats, including Text, Html, PDF and Microsoft Office documents. Documents can be supplied as online Web pages, files residing on the user computer or typed directly into the program.