While there may be alternatives, you do not need on. I have pdf xchange viewer

running on linux natively using wine.
Install wine using fedora package manager (System->Administration->add remove software).
Search wine and install (A Windows 16/32/64 bit emulator) if it is not already installed.
Then download the installer for PDF Xchange and run the installer like normal. Because i don't normally run this software, I can't tell you how good it works. Its seems to be stable to me though. Hopefully,
(e:tinypliny,52765) can give you more info.
It should make a shortcut on the desktop. You can drag that to the panel at the top of the screen if you prefer.
Emulators are slow because they emulate the hardware with software. e.g. you could run a powerpc emulator on an intel cpu or a gameboy processor emulator on a cell phone cpu. I believe wine and other virtualization such as virtualbox and vmware actually allows the software to use the hardware directly and therefore are not slow like emulators e.g. QEMU
Its why you can't have wine directly on a powerpc distro.
Wine is a compatibility layer that runs the Windows api. My guess is that for the end user there is not much difference between a "compatibility layer" and an "emulator"
But I think you are right, Fedora/Red Hat shouldn't call it an emulator.
Wine runs natively off the processor. Wine actually stands for Wine Is Not an Emulator. Not sure why they used the term emulator in the package manager.
The more integrated the program is with windows itself, the less likely it is to work. I do believe that you can run many things though this way. :::link::: for more info.
You can always use virtual box for things that need full on windows.
That is great!
But opens up a gaggle of questions...
So wine is fine then? I thought the idea was not to use and run things straight off fedora without an emulation interface. Is this a bridge solution till a native PDF Xchange-like solution comes to fedora? You said you were able to run Q10 as well - does that mean I can run almost any windows program on wine (that I can't find native alternatives to) and get away with it... including say, MS Word?!