I don't know if ...

[patrick23]

9. Don't know where to ask...

Lately I found myself having to read more and more lengthy documentation, from a couple of pages to a few hundreds. I get them in electronic format, most of the time pdf. I usually have a first look on my computer screen but for long document, more than a couple of pages, I always feel the need to print them out because I don't feel comfortable staring at my computer screen for a too long time. I know there are devices specialized for this task but never had the chance to try one. For people who use them on a regular basis, which one would you recommend ? Is there any incompatibility, proprietary format ? I get most documents in pdf format