You can see there's a statue of Galileo to the left and to the right, bleeding across to the next page is a strange bit of hieroglyphics like something out of the Da Vinci Code. Very nice, I thought, but what does it mean?
So I sent a note to the editor, who came back swiftly, something to the effect of 'Isn't it obvious? It's Galileo's signature.' Well no, it wasn't obvious. But then I was struck with one of those IT inspirations. I thought I'd take a look at the same PDF on my computer. And this time, this is what I saw:
Now this is exactly the same file. All that I have changed is the device I'm looking at it with (and hence the software interpreting the PDF).
I'll continue to use the iPad to read PDFs as it is so much better an experience than doing it on a conventional screen. But in future, if anything looks strange, my first port of call will be to check what it looks like back on the old dinosaur machine.