Yes, Acrobat Pro and the Distiller come together. You can't purchase the Distiller separately. Last I heard, Acrobat DC Pro was still available as a standalone purchase, as was Lightroom. That is, you didn't have to go with the monthly never-ending subscription to get it.
As I look on Adobe's site now, I can't find a perpetual license version of Acrobat DC Pro. They only show two different subscription options. Amazon.com shows a boxed full version, but it ain't cheap at $449. They also show an upgrade version for $199, but are out of stock. MacConnection has the upgrade and full version in stock. MacMall also has boxed perpetual license copies in stock.
From what I could(n't) find on Adobe's site, they may have stopped offering a boxed version of Acrobat DC Pro. Which would mean the other vendors I noted above would be what they have left. It's still the same software, just may be the last chance to get a perpetual license copy.
Why the Pro version? It's not that the built-in OS PDF generator doesn't work, but what it does do is always knock your images down to heavily compressed, and low resolution JPEGs. Were they CMYK to begin with because they needed to be? Too bad. They're RGB now.
I'm not sure how many versions back Acrobat DC Pro would accept your older version's serial number. If you purchase an upgrade DC copy and your previous version is too many back, then you'll have an upgrade copy you can't activate. Check with Adobe by calling customer support to be sure.