(like Singleton or Strategy) to see if the book's style fits your learning needs?
If you need a PDF, you can use your browser’s feature. Navigate to the pattern you want (e.g., "Singleton"), right-click, select Print, and save as PDF. This gives you a clean, legal copy of the exact Dive Into content, albeit one chapter at a time.
"Not a theory book — a toolbox for the working developer."
It seems you're looking for a free PDF of "Dive Into Design Patterns" on GitHub. Here's what I found: