Can documents exist only in paper form?

No. Polish law recognises three forms: the written form, which really does require paper and a signature; the documentary form, where the medium is free; and the electronic form, based on a qualified electronic signature. Some official documents today exist only in digital form.

Three forms and the difference between them

• The written form requires a handwritten signature on paper. Here paper cannot be avoided.
• The documentary form only requires the statement to be recorded in a way that allows the person who made it to be identified. An e-mail or a message in a system is enough.
• The electronic form rests on a qualified electronic signature and is legally equivalent to the written form.

Plenty of everyday matters that people print out of habit fall under the documentary form and need no paper at all.

What still requires paper

Paper remains above all where a provision expressly reserves the written or notarial form: a handwritten will, notarial deeds, some statements requiring an officially certified signature. The list is short, but it holds wills and notarial deeds, where the form decides whether the document is valid at all.

What already exists only digitally

The reverse works just as strongly. Confirmation of an entry in CEIDG, registration of a company in the KRS, e-Doręczenia, declarations filed through the e-Tax Office and the electronic land registers have no paper version as the primary one. A printout there is a convenience, not a document.

Which form the matter actually needs

The question is not “paper or digital” but what the particular act requires, and where what it produces ends up. Documents in the written form need a physical, secure place plus a scan in case of loss. Everything else needs one thing only: a single organised digital place where it can be found when needed.