If you absolutely need a PDF format because you want to annotate on a tablet that doesn't support EPUB, or you need to print specific pages, you can legally convert your purchased e-book.
Typically between $8.99 and $12.99 USD. Given that you will re-read this book annually (trust me, you will), that is a bargain.
Your bookshelf (and your computer’s security) will thank you.
The bet started in a smoky bar, fueled by bruised egos and too much scotch, but it ended up rewriting the DNA of two people who thought they had life all figured out.