The sad reality is, Adobe offer the best products in the biz, usability, toolsets, etc. They just charge a ridiculous amount. It's a huge barrier to access. Midn you if you know your way around VPNs and Tor, grabbing yourself a copy isn't too difficult. Tho I'd avoid anything news than CS5/6.
The older software can stand alone pretty good and will still do everything you want it too.
If Free/Open source is the way you wanna go the best options I reckon are
Indesign / Scribus
Photoshop / Gimp or Krita
Illus / Inkscape
Word / Open Office
We use Open Office and Indesign for the bulk of the work, LaTex is a great tool, but it's a massive barrier to sharing outside of a very niche community.