I researched this, and it seems this is how Apple imagined it should work. Perhaps they would like to spare with bandwidth - I don't know. I will try to route to the Google player directly on iOS devices.
Now I updated the sample album to use the other player, however sometimes it just shows an empty screen - perhaps the PDF file is too large and takes some time to load?
It half works. The PDF loads fine but you can’t click on links to jump to specific pages - for example those on the index page. I’d go for not using the player and renaming the download button to ‘Open’ - just my opinion.
In one of my skins, I treat PDF's more like web locations - the thumbnail just opens the PDF in a new tab. Not as elegant, but maybe more robust.
That’s a solution that might be even better.
I was thinking of create a weblink to a pdf folder, instead of just putting the pdf in a photoblogger folder. But then I have to create a link every time I add a pdf-file. And that takes away the automation process so it’s not really an option for me.