[Harper]

I don't know what's happening with your file but I can confirm there is a problem. I uploaded it to my 13" Azpen and found the issue as you described. I can turn three or four pages ok then it hangs for a brief time. It's fairly repeatable.

I don't think its a file size issue as I have several individual tunes that are 2-3 X your file size (pdf's) and have no problem with them. I don't think you should have to convert to images altho I'm sure it would help. Sorry....can't offer any advice.