I don't think it's so popular that you can find a PDF version. And this is not a good place to look. I doubt that there are many traders who applied Market Profile to forex. It works not bad for bonds and futures (e-mini's) but I could not find a good use of it in forex.
Also if you consider buying it, I'd suggest to get Dalton's latest book Markets in Profile with the Mind over Markets. It's recent and has a lot of additional information relevant to the current nonstop markets.

Wookey.

PS. I have that book in paper, so if you have a certain question PM me I will look into for answer.