Not a free official one, but yes, legal resources exist.
(vocabulary), often sought in PDF format for quick reference and mobile study. What is the Suomen Mestari 1 Sanasto? Suomen Mestari 1 Sanasto Pdf
Be careful when searching Google for "free PDF." Many unofficial versions floating around are from old editions (e.g., 2010 vs. 2021). The 2021 edition has updated vocabulary and new chapters. Always look for the cover with the blue and white waves. Not a free official one, but yes, legal resources exist