The main reason why you would want to use an in house of editing application instead of getting a free program is because of its extensive features. It allows you to edit PDF files right within Windows, and even allows you to sync your changes between multiple computers and portable devices. How many times have you wanted to convert a text document into a PDF, but couldn't because of a formatting problem? With a PDF file, you don't have to worry about that. In addition to that, you can add color and customize fonts, tables, and shadows and other aspects to the document you are working on, so you always end up with the perfect document.
Another great feature that is available with the Infix PDF Editor is the ability to perform tasks in two different modes, which is very useful for those who do a lot of editing. You can easily open a document in "Editorial" mode, which allows you to simply highlight, write notes, and perform other functions as though you were in a word processor. You can also switch to the more detailed "Excel" mode if you'd like. In either mode, you will still be able to save your work as a PDF file. Overall, this is a great piece of software that is highly recommended for anyone who works with PDF files on a regular basis.