If you saw a specific post (e.g., on a forum, Reddit, or blog) recommending a Sounds magazine PDF:
Over the years, Sounds magazine underwent several changes in editorship and ownership. In 1974, the magazine was acquired by the publishers of the NME, and under the editorship of Alan Lewis, it began to focus more on mainstream rock music. However, this shift in focus was short-lived, and by the late 1970s, Sounds had returned to its roots as a champion of underground and experimental music. sounds magazine pdf
Finding full PDF archives of Sounds requires navigating several historical preservation sites: The Paper Age: Why ‘Sounds’ Magazine Lives on