You do not need to risk a virus or an outdated text. Here is how to access this information legally and often cheaply.
The PDF (the real one) provides millimeter-precise instructions for:
Reputable training websites (such as StrongFirst, Squat University, or BackFitPro) offer detailed, free summaries of McGill’s work. Dr. Aaron Horschig’s Squat University blog, for example, breaks down the Low Back Disorders assessment flowcharts into free Instagram posts and blog articles.