Never tried that, but I'm going to try some of these other apps first.

Bloatware yes, my install directory for AP9 is almost 2GB. I really think they bloat it up to make piracy more difficult.

But this is interesting: I loaded Acrobat Pro 9 on my multimedia rig here (2.13Ghz dual core Intel, 4GB RAM, Vista with Service Pack 1).

Acrobat Pro 9 loaded in less than 1.5 seconds of my clicking it.

Looking at task manager, it takes up almost 16MB of memory on startup. Granted, that's without having a document loaded.

There was no acrotray.exe listed in task manager. I remember when that would be installed in previous versions, but now that I think about it I haven't seen it listed in Task Manager or my startup for some time... unless it's something else now?

For a point of reference, Firefox.exe had over 141MB of memory. That's after visiting here, and before that eBay, Facebook, and some other related sites with only having a single tab open.

I'm not bashing on FF or blindly singing the merits of Acrobat Pro, but AP9 is very fast and doesn't take up much RAM on my system. I wish there was an equivalent of OS X's Preview for Windows, it's actually one of my favorite components of the OS.

I've noticed too firefox becoming bloated or rather slow loading. the only advantages are the plugins which some are quite useful.

FF runs great in Linux.. ting bang.
Do we really concern ourselves still with how much RAM a program is taking up?
I find myself more concerned with who is eating up all my process cycles.

ubook

http://www.gowerpoint.com/uBook_main.html

opens things inside zips too to read and handles those .cbr comics too
nice page texture and decent font rendering for reading text and html

I've used foxit and sumatra out of that list harry posted.

sumatra is super fast but I find it a little bit cumbersome to use.

foxit is fast and doesn't get in my way at all. I use it currently.