For those interested in accessing the book, it's worth checking online libraries, bookstores, or digital platforms that host eBooks. The PDF version you mentioned might be available through these channels, though ensuring the source is legitimate and supports the author and publisher is crucial.
Which option?
The first chapter establishes the necessary solid geometry concepts (surfaces and curves in 3D) before diving into the calculus. Reader Consensus elements of partial differential equations by ian sneddonpdf