Linux self selects: if you use linux you’ll need to become familiar with command line.

It seems out of whack to complain about linux without investing a wee bit of time with cli.

it's their right

but it's not the car's fault if people don't want to use keys to start them up.

anyway, there's a huge amount of GUI software to handle PDFs in Linux, I will say that Linux gives you the most options, either as free software and close source ones.

Hell Acrobat is gold on WineHQ!

Yes, then I just think for now they are better of with one of the other two. I think its great what progress is happening on the GUI front, but I won't argue with gp that some things are a little sketchy.

But for those who do have the patience and understanding for the shell and man pages, well they can become more powerful than the other Oses combined!