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Portugal visa allows travelers to enter Portugal for various purposes, such as tourism, work, study, or family reunification. Portugal is part of the Schengen Area, so a Schengen visa permits stays of up to 90 days within a 180-day period. Long-term visas are needed for stays exceeding 90 days. Requirements include a valid passport, application form, proof of accommodation, travel insurance, and financial means. Applications are typically processed by Portuguese embassies or consulates.