I wonder if there is a viewer, or a whole TeX package allowing me to display two pages side by side. I have two big monitors and I cannot use them effectively now. PCTEX comes close but not quite – it has a DVI viewer, which creates a lot of problems with embedded figures. I have Texworks and Texstudio installed, and they cannot do that.
I am running Win 7.
Best Answer
Apart from the fact that I use SumatraPDF and I'm completely satisfied with it (I suggest it to you, it has the feature you've mentioned and many others), TeXMaker built-in viewer supports this feature, if you like this feature to be built-in.
Note that TeXMaker is not much different from TeXStudio, which is a fork of it.
To enable this feature in TeXMaker, just click on the 'eye' button and select 'Two Pages' as you can see in the following image. That's it.