The 'Spartacus' novel by Howard Fast is indeed a classic, and I've seen it pop up in various formats over the years. From what I recall, PDF versions do exist, but their availability can be a bit hit-or-miss depending on where you look. Some online repositories or digital libraries might have it, though I’d always recommend checking legitimate sources first to avoid sketchy downloads.
Personally, I stumbled across a PDF version a while back while digging through an old forum thread about historical fiction. It wasn’t the best quality—scanned pages with slightly blurry text—but it got the job done. If you’re after a cleaner read, you might have better luck with an ebook store or even a physical copy. There’s something special about holding that kind of story in your hands, you know?