“How do I annotate a PDF document?” If you ever have tried to annotate a PDF, you have probably discovered just how painstaking such a simple process can be. With an estimated 2.5 trillion PDFs in the world, there must be an easy way to work with such a commonly used file format. 

Luckily, there is – and most people don’t even know how much time, energy and even money they can save when working with the right PDF annotation tools.