Yes, it is possible to download the certificates from your Youthpass account if they were generated by your organisation after 4 December 2023 and if your project was a 2021-2027 Erasmus+ Youth or European Solidarity Corps project.
However, please note that the certificates are not generated automatically and they are not generated by the participants. The organiser of the project needs to generate the certificates, sign them digitally and make them available to you as downloadable pdf-s. For this, they will also need to send you a connection request from their Youthpass account. Only after these steps are finalised, your certificate will be available for download on your Youthpass account.