PDF is a widely-used file format that can be used to store all the elements of a document. It can capture interactive elements including buttons for entry or QuickTime movies with sound and non-interactive elements such as images, text, and graphics. Compared to other file types, it has many more advantages. Are you working with PDF file for your business or study? Why do you use PDF files? One of the most important reasons that I use PDF is because I can easily view the document visually on any of my device.