invert colors of PDFs to white on black ??

[Schmolch]

I often read PDFs and sometimes the large amount of white becomes uncomfortable for my eyes and i start wishing they would be white on black instead of black on white.

Does anyone maybe have an idea how do something about that?

PS: Im already dimming the brightness of the TFT

[mikegpitt]

I did some google searching but I wasn't able to come up with a definitive anwser. I think one of the utilities that come with the netpbm package should do this though. You can probably use it in conjunction with ghostscript. I'm not sure which one though or what options to use... there are a ton. Hopefully this will get you started in the right direction.