Smile Software is best applications Maker for Mac operating system currently available in the market for PDF file editing and text changes. They have designed several app that all are having their distinctive usage and features. Product lists compromises of PDFpen, PDFpenPro, PDFpen for iPad+iPhone, PDFpen Scan+, DiscLabel, TextExpander, and TextExpander touch. Via their text expending software there is no need to use external keyboards as is provide users with customizable virtual keyboards for inserting texts along with pictures. PDFpen provide users with complete tools that they required editing their PDF files no matter whether they are on office or o road.