To apply a DTF (Direct-to-Film) transfer correctly, start by preheating your heat press to 275-325°F (135-163°C), depending on the film and adhesive used. Position the fabric on the press and pre-press it for 5-10 seconds to remove moisture and wrinkles. Place the DTF transfer film on the fabric with the printed side facing down. Apply firm pressure for 10-15 seconds using a heat press. After pressing, let the transfer cool completely (cold peel) or peel while warm, depending on the film type. Finally, for durability, press again for 5-10 seconds with a Teflon or parchment sheet on top. This ensures a vibrant, long-lasting design with excellent adhesion.