Dreaming of Japan and wondering what documents you need to prepare? You are not alone. Knowing the Requirements and Photo Sizes of a Japan Visa saves time and prevents rejections. You typically need a valid passport, a completed application form, and a recent photograph. The photo must be 45mm by 35mm, taken within six months, with a plain white background and a clear, forward-facing view. Check every detail carefully before submitting, apply early, and keep copies ready for your journey.