sproof sign enables the cross-border collection of legally valid signatures with different eIdentity providers (trust service providers) and thus makes qualified electronic signing a very low-threshold matter. With sproof, users can select various eIdentity providers recognized throughout Europe for internationally legally valid signing.
1) Upload
document 2) Select
the qualified signature as signature type 3) Dial
in directly to the external signature provider via sproof sign 4) Sign with second factor