true-Sign is a central signature service and provides different interfaces for the electronic signing of common document formats.

With the SuisseID Signing Service by QuoVadis mobile electronic signatures can be established without the use of a smart card or USB token.

Supported file formats

true-Sign supports all popular file formats, hash trees and generic signatures. 

  • Office documents
  • Office Macros (Excel, Word, etc.)
  • PDF, PDF/A
  • Java code, Microsoft Authenticode (.exe, .dll, etc.)
  • Generic signatures



Standards and long-term archiving

true-Sign supports advanced and qualified electronic signatures according to the Electronic Signature Act (ZertES), OElDI and Accounts Ordinance (GeBüV) as well as common standards relating to long-term archiving (LTV).

  • ETSI TS 102 778-1-5: PAdES-LTV, XAdES-A, CAdES-A
  • RFC 6283: XMLERS
  • RFC 4998: ERS
  • RFC 3161 Time-Stamp Protocol
  • FIPS and CC certified Hardware Security Modules