I am going to get my pdf files organised and Adobe Digital Editions is the very thing since it has a Mac and a Windows version. It is free and designed to be used as an e-book reader and so it has the added advantage of my being able to create libraries for my pdf files. I can copy text by using Control- C and then paste it into other software if I need to. It is as easy as dragging and dropping the pdf files from my desktop or location to the Digital Edition. It’s only been out since at least 2011 so it’s about time I caught up! Digital Editions comes with its own pdf which you can read in the e-book interface and it has plenty of useful information to make the most of it, including keyboard shortcuts. There are also some sample books to download from the site.