As any teacher will tell you, the last thing they want to be doing is faffing around with technology during a lesson. An easy way for a lesson to go quickly south is to be relying on a piece of technology to work there and then, and it suddenly doesn’t. Cue descent into chaos and a carefully planned lesson unravelling. This is one of the reasons why the iPad is so appealing in education, because it isn’t a faff (and this is coming from an Android fan). There are also certain apps on the iPad which work in an extremely straightforward way and do something very useful in the classroom. Classroom PDF is one of those apps.