I am proposing a feature for Nextcloud Server which would support Document Creation/Signing like it is allowed on HelloSign, DocuSign and RightSignature just to name a few. Where a user can create a form, adding a text field, signature field, radio buttons or check boxes in a PDF document.
The Nextcloud admin would create a template document which can then be customized for a specific user which would be identified by email address, that email address doesn’t have to have an account. The email address is notified automatically by Nextcloud server, requesting their signature.
I have requested the feature here as well: https://github.com/nextcloud/server/issues/5139