The D5 Visa is a type of Portuguese visa designed for international students who wish to pursue higher education in Portugal. This visa allows students to enroll in Portuguese universities, polytechnics, or other higher education institutions

The D4 Visa is a type of Portuguese visa that allows foreign nationals to enter Portugal for the following purposes Study, Exchange, Professional Internship or Volunteering

The D3 Visa is a type of Portuguese visa that allows highly qualified foreign nationals to work in Portugal in highly specialized

The D2 Visa is a type of Portuguese visa that allows foreign nationals to engage in independent professional activity in Portugal. This visa is intended for freelancers, entrepreneurs, and other self-employed individuals who want to provide services in Portugal.