I'm stuck on MS Office for the forseeable future. I can't complain at all. It cut what's an 8 hour process into 10 minutes once I coded all of the automation. Now I've got this neat system that handles all of my offers, orders, billing, etc, etc all virtually hands free.
It didn't take long to teach myself the code I needed to know to do what I want. Now I just check my email, copy over new lists into the directory, open my Access DB, and click 1 button. It matches inventories, creates nice excel spreadsheets with everything relevant, mails them out, marks the transaction logs, etc, etc.
I managed all of that without any computer classes since highschool... so I can't complain about MS Office at all, let alone contemplate switching.
and you've been able to save as PDF files for a long time, on pretty much any version of MS Office. There's plenty of little plugins that will do it for you. Hell, my lexmark printer install disk came with one that works perfectly.