Ok, so it's free. I tried d/l it onto my iPad thru my Mac but I think it disappeared somewhere either on my Mac or the iPad cuz I can't find it anywhere in the usual places, not even in downloads. Need I just try to d/l it to my iPad without going thru the Mac? I'm going to try this and I'll let you know.

edit - it d/l onto my iPad all right last night, but it stayed invisible until I went back to apple's website where I d/l it just now on my pad's safari and as soon as I touched install with my finger, it appeared and began installing on my iPad.

Now I'm going to try it out.

Edit 2 - I got the 320 version of PDF noted which has bugs. It says to update it to 321 so I tried going back to apple's website and updating it, but it woun't let me update - the update 321 link is grayed out - what do I do?