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Certification Services

Qualified Digital Certificate

The qualified digital certificates ensure the automatic and legal recognition of the electronic signature in Portugal and throughout the European Community. These certificates are appropriate for digital signatures, where proof of identity and legal recognition are essential.

Select the certificate category that best suits your situation and sign electronic documents with your Qualified Digital Certificate:

  • CDQ Representação

    Representative QDC

    This certificate profile is intended for the identification of a representative of an organization, this qualified certificate profile is issued to a person who has powers of representation of that company or institution...

  • CDQ Membro

    Member QDC

    This certificate profile is intended for individual identification, this qualified certificate profile associates you the job/role you play in a company or institution...

  • CDQ Profissional

    Professional QDC

    This certificate profile is intended for individual identification, this qualified certificate profile associates you a job title, like Doctor, Engineer, etc.

  • CDQ Individual

    Individual QDC

    This certificate profile is intended for individual identification of a person. You should choose this profile if you are a sole trader.

  • CDQ Representação Campanha de Troca

    Exchange Campaign Representative QDC

    This certificate profile is intended for identification of an organization, this qualified certificate profile is issued to a person who has powers of representation of that company or institution...

  • CDQ de Selo Eletrónico

    Electronic Seal QDC

    It is intended solely for use by a legal person, and from a technical point of view is similar to an electronic signature certificate.

    • Not applicable for Electronic Public Procurement.