Can I print a record or save it as a PDF?

Not today. There is no print button on a record and no way to download a record as a PDF.

Your browser's own Print (Ctrl-P or Cmd-P) will print the whole screen, sidebar and all, because we have not built print styling yet. It works, but it will not look like a document you would send to somebody.

What you can get out today is a full export of the app, from the app's settings: that gives you your data as files, not a printable page.

If printing records matters to you, tell us. It is not built, and knowing someone wants it is how it gets built.