What you can't do with Reader however is create PDFs at least not without signing up for Adobe's online PDF creation services. In addition to viewing PDFs, Reader also boasts a number of features that let you do things to PDFs including searching them, adding comments, completing form fields, and digitally signing them. This course you're watching covers Acrobat Reader which is the free program available from the software company, Adobe, that anyone can download and use to view PDF or portable document format files. Before we jump into things, I wanted to take a moment to clarify the difference between Acrobat Reader and Adobe Acrobat.