I was actually looking into 'The Perfume Collector' myself last week! Such a beautifully written novel—it really transports you to 1950s Paris and London with its vivid descriptions of scents and high society. From what I found, the PDF version isn't officially available through major retailers like Amazon or Kobo, but some academic sites or digital libraries might have it. I'd recommend checking platforms like Scribd or OverDrive if you have a library membership. The paperback is absolutely worth owning though—the cover art alone is stunning!
That said, I did stumble across a few shady-looking sites claiming to offer free PDFs, but I'd steer clear of those. Not only is it sketchy, but supporting authors by buying their work ensures we get more gems like this. Maybe try a used bookstore if you're on a budget? I found my copy at a thrift shop, and it smelled faintly of roses—fitting for the theme!