I need to create a PEM file of a SSL (CA) certificate. Chrome does provide an option to view the certficate and export it as Base64 encoded X.509 (.CER)* file. In addition, the file extension can be changed to .PEM. Does the certificate only contain public information and can it safely be shared with other people (let's say colleagues)? E.g. Stackoverflow contains a Root CA certificate. If I create the PEM file and share it with somebody, does it even matter or is there any security risk?
Background info: I need to export the SSL certificate (as .PEM) from an API endpoint in order to add it as trusted CA certificate in Postman.