Digital certificate

You are welcome to download and install our self-issued certificate to verify and validate documents signed with this certificate.

Please follow the steps to install the digital certificate to Adobe Acrobat Reader

1. Please download GCT root certificate
2. Run Adobe Acrobat Reader. In the ☰ Menu (top left) go to Preferences. A dialog will open.
3. In the list on the left select Signatures
4. Next to Identities & Trusted Certificates please click More… A dialog will open,
   
5. In the list on the left select Trusted certificates. In the toolbar on top of the list click  Import. A dialog will open.
   
6. In the upper part of the dialog click the Browse button and point to the GCT root certificate that you’ve just downloaded (gct-ca.crt).
7. A line GCT CA Certificate Services | ca@gctrials.com will appear under Contacts. Select it.
8. A line GCT CA Certificate Services… will appear under the list of Certificates. Select it and click the Trust button. A dialog will open.
   
9. Put a check at Use this certificate as a trusted root and click OK.
   
10. Click Import, OK.