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QSign 6

Desktop appllication for qualified electronic signature

QSign 6 for Windows

Version: 6.1.2

Published: 08.07.2024

Download 32-bits version MD5: ca27458c91d48256405de850c9cc065a

Download 64-bits version MD5: 2b8e42ddf23e1eb5fa92c3ec456761f6

QSign 6 for MacOS

Version: 6.1.2

Published: 08.07.2024

MD5: c2011c2c154aa4c282a6e0dfbeb43535

* Based on the recognition of your operating system, the link to download the recommended version of the installation file is highlighted.

User Manual

Get the license

The installation file of the application with the verification license can be downloaded and used free of charge.

To use the signing features, you must purchase the appropriate software license to activate those features.

Buy a license

What is new?

Application change history


  • Posibility to insert a visual signature while signing PDF documents.
  • Replacing the Ghostscript component with an internal library.
  • Improved verification speed.
  • DSS library update.
  • Log4j update..
  • Modification of signing for the Slovak Commercial Register portal.
  • Fixed known bugs.


  • Added transformations for the new package of OR SR forms.
  • Resolved the need to run the application as an administrator after its first run after activation.
  • Canceling the transfer of settings from QSign 5.
  • Fixed bug in displaying guaranteed conversion attestation clause after signing via QSign Mobile.
  • Fixed long opening of the app when signing via command line.
  • Fixed malfunction of changing the signature type setting when combining documents by signature.


  • Added option to insert full information in signature.
  • Added option to export certificate/crl/ocsp in text form.
  • Added detailed signature information in the Signature Status window.
  • Added transformations for the new package of OR SR forms.
  • Solved problem of incomplete certification path when using new certificates from I.CA.
  • Fixing broken insertion of timestamps from the Starcos card.
  • Fix offline activation malfunction.


  • Ghostscript 10 support update.
  • Added the option of batch signing using drag&drop documents to an empty application window.
  • Fixes of detected errors.


  • Fixed the error of opening the associated file by double-clicking.


  • Fixed bug occurring when signing in to Starcos card.
  • Correction of the error message displayed when the private key is not found, if the wrong device (card) is connected.


  • Update of timestamp support from the I.CA provider due to the rejection of the untrusted SSL certificate of the domain https://tsa.ica.cz.
  • Fixes of detected errors.


  • Adjusting of smart card management.
  • Adjusting of communication and signing on the slovensko.sk portal.
  • Support for signing on ITMS and eZaloby portals.
  • Fix for an error when signing forms on the Financial Administration portal.
  • Fix for an error when signing a submission to OR SR on the portal slovensko.sk.
  • Fix for the error "An established connection was aborted by the software in your host machine".
  • Fix for non-functional ability to load certificates from Windows storage.
  • Fix for the error of using a certificate when replacing a chip card of the same type.
  • Fix for opening files with ".acics" extensions.
  • Detection of certificate invalidity for access to the time stamp service.


  • Mobile signing support - signature authorization in mobile phone.
  • Extra fast batch signing using mobile signing.
  • Signing forms and documents on public administration portals.
  • Possibility to insert a visual presentation of the signature into a PDF document.
  • Validation report - XML output from signature verification.


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