Manga Viewing

I am looking for an image viewer for linux where I can view all images flipped horizontally. I use a laptop and I like to see manga pages as large as possible. I can turn the laptop on the side (and its widescreen) and pages fit really nice and dont get shrunk like they do viewing normally.

I can do this on windows by flipping the screen using nvidia drivers. I know that its probably possible using the linux nvidia drivers to do the same but lets assume that I cant do that.

Every image viewer allows you to flip the image on the side but I dont want to do this for every page. Is there an application which either lets you view from the side or apply the flip transformation to each image?

I am having an issue and would like some help. I have this keyboard and its not doing what I want it to do. You see, I'd like to type in all capital letters and I can't figure out how. Would someone please inform me where I can get a utility that does this for me?