For the initial verification, if I use my personal ID, is this the one that will show in the final uploaded file verification?

Use case - our organisation runs coaching programs. We issue multi-page PDF certifications. We want to upload these to blockchain via Certyfile so that it can be verified as authentic and issued by our organisation.

How do I go about this?

Also, if for any reason Certyfile ceases to exist, what happens to the docs already uploaded?

Thanks and all the best!