There's also LibreOffice which has native PDF export functionality, and if you have a legit copy of MS Office 2003 (I think, maybe only 2007) or later, there's a PDF export add on you can download.
If you have easy access to a Mac, they've had this feature standard for the last 11 or so years.
I'd also strongly suggest looking at the free Foxit Reader (which also has a paid PDF creation add on). While the 5.x series has been a bit of a departure from what made the program great in the past, it's still miniscule in size compared to Adobe Reader, and far more secure on the whole.
free software to make pdf file. I have only Adobe Reader on computer. I was going to download the Adobe 30-day trial version as would rarely use the software. Appreciate suggestions.