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Certification Services

Member QDC

Aimed at individual identification, this qualified certificate profile associates you the job / role you play in a company or institution, not allowing the signing on behalf of the organization / company - for this purpose you should choose the "representation" profile. You must select this profile in case you need to sign as holding a position in an organization, such as Commercial Director. In addition to the individual identification information as well of the company it may also contain the title and usage restrictions.

  • Purchase Options
  • Documentation
  • Technical Information
  • Choose the pack corresponding to the desired device.

    Complementary products.

    Additional Notes:
    The Qualified Digital Certificate will be issued and valid for three years.
    If there is an expiration date on any document that proves a legal representative capacity (eg power of attorney, delegation of powers, etc.), the certificate shall be issued with that date of validity.
    The pack value includes:
    - 200 timestamps;
    - 1st annuity of the Qualified Digital Certificate;
    - Chosen cryptographic device:
    > HSM Pack - Stored at DigitalSign
    > Smartcard/Token Pack - In the client possession
    - Drivers and software;
    The subsequent annuities (optional) will have a value of 95€ +VAT.
    You will be notified of the data for payment of the respective annuities with about 30 days in advance.
    Non-payment of annuities results in automatic revocation of the certificate.

  • The following documentation must be sent by post or delivered by hand, in its original version:

        • Application for Digital Certificate Issuance duly signed and notarized;
        • Exercise of functions declaration (according model) in original, duly signed and stamped by the Legal representative of company / organization;
        • Photocopy of title proof (if filled);
        • Photocopies of identification documents (e.g. ID Card) of the certificate holder.

    Shipping address:
    DigitalSign – Certificadora Digital, SA
    Largo Padre Bernardino Ribeiro Fernandes, 26
    4835-489 Nespereira – Guimarães


      • In case of indicating a permanent certificate code, make sure that it is valid (active certificate) for online consultation;
      • The documents that have expiration date must be valid at the time of the documentation validation;
      • The signatures contained in the documents shall be in accordance with the presented identification documents;
      • The e-mail address to be given must be valid and be consulted regularly (email to which the certificate activation codes will be sent);
      • In the cases of disagreement, the data should be updated before the certificate purchase;
      • The documentation will be checked within a maximum of two (2) business days after receipt and payment confirmation;
      • As soon as the application is approved, your digital certificate will be sent to you via postal mail or equivalent (to the identified address).

    After receiving your Qualified Digital Certificate

    • Please complete and sign the Term of Reception which will be sent together with your Qualified Digital Certificate;
    • Send by fax (No. 253 560 639) or by email ( the completed Term of Reception, correctly completed and signed by Representative / Attorney;
    • DigitalSign will send you the activation codes (PIN and PUK) through secure e-mail;
    • Follow the instructions in the aforementioned message to complete the installation process of your new Qualified Digital Certificate.
  • Pack SmartCard

    - 1 Qualified Digital Certificate for Digital Signature
    - 1 cryptographic card (smart card) customized with the name / company
    - 1 Card Reader R301 (or equivalent) as an offer
    - All drivers and software included: Windows XP SP3, Vista, 7, 8, 8.1, Linux kernel 2.6 or higher, MacOS 10.9, 10.10, 10.12 or higher
    - 200 timestamps.

    Pack USB

    - 1 Qualified Digital Certificate for Digital Signature
    - 1 USB cryptographic Token
    - All drivers and software included: Windows XP SP3, Vista, 7, 8, 8.1, Linux kernel 2.6 or higher, MacOS 10.9, 10.10, 10.12 or higher
    - 200 timestamps.


    - PDF Sign & Seal is an application that lets you create and digitally sign PDF documents. See here the requirements of PDF Sign & Seal;

    - The digital certificate is generated and stored on the card / token, so it may not be exported or played on another device after its issue;

    - The card / token has two passwords, PIN and PUK . PIN password is of use, ie allows the use of its private key from the card / token;

    - If this password is entered incorrectly 3 times, the certificate is blocked;

    - After three incorrect attempts entering the PUK, the card / token and hence the license shall be destroyed;

    - CAUTION: Do not initialize or format your card, it will lead to irretrievable loss of your digital certificate.