With this certificate, it is possible to authenticate yourself or digitally sign transactions and documents, claiming to have a certain quality in the context of a particular collective person (for example Commercial Director or Quality Manager).
Get a digital certificate through our website:
1. Complete the web form available at https://www.multicert.com/3ws/cdqc
2. Print or save the pdf contract
3. Sign the issuing contract in one of the following ways:
a. Digitally with qualified electronic signature of the holder and legal binding representatives (if applicable)
b. Digitally with qualified electronic signature of the holder and Qualified Electronic Seal of the Company
c. Hand signed by the holder and the legally binding representatives (if applicable). This signature must be witnessed by a notary/lawyer, whom will produce a second document (in English)
d. Hand signed by the holder and the legally binding representatives (if applicable) on Multicert premises in Oeiras or Porto
4. Gather all necessary documentation. For detailed instructions on the necessary documentation please click here
4.1. Send a documentation to Multicert
All paperwork must be sent by post or delivered to our offices.
Address: Av. Sidónio Pais, 379
Hoechst A Building, Floor3, Right
All digital documentation must be sent to firstname.lastname@example.org
5. Validate your email address by clicking on the confirmation link sent to certificate
6. Pay your certificate through wire bank transfer folling instructions here
Note: you may download the list of documentation to gather from here
If you already have a digital certificate by Multicert and received an email indicating the need to renew it by paying a fee, you shall:
If you have had your digital certificate for two or more years, you will have to request a new cryptographic device (USB token or smartcard).
In this situation, the purchase procedure is the same as for a new issuance (displayed on the side), and you shall mark the renewal option on the web form.
Have you already purchased the certificate but have not received it yet? >
Learn more details on the product >
Documentation to provide in the case of a foreign client >
What to do to get started?