You will NOT have to send an image of your ID card or passport.
You will have access to all Certis tools, except the multi-signature contract signing tool.
You can start by registering this way, and if in the future you need to sign contracts, verify your identity.
European eIDAS regulations require us to reliably verify the signer for advanced electronic signatures.
You will need to send a photo of your ID card or passport during the registration process.