If you’re a Mac OS user and need a quick and dirty way to batch convert a whole bunch of files from one format to another, you may not need to seek out or even buy an app for that. In fact, for some file types all you need to use is Apple’s Preview, an app that comes with every installation of any Mac OS.
Many of us already use Preview daily in a pinch to handle PDFs and photos. It can be pretty handy whether we want to annotate a PDF or crop, resize or colour adjust our photos. It can also be used to easily merge and combines PDFs. Read full post at Canoe Tech Blog.