Digital Signatures for Documents, Code and Data
With keyon true-Sign, you can digitally sign documents, software code and other data formats securely and in compliance with legal requirements. The central signature solution supports internal and external certificates as well as different signature services.
- Accelerate business processes and manage them entirely digitally
- Build trust in documents, software and digital records
- Deploy signatures securely on premises, in the cloud or as a managed service
When digital processes end at the signature
Contracts, approvals and software processes have long since become digital. Without a secure signature solution, however, organisations still face media disruptions, longer processing times and additional effort to meet regulatory requirements. Code signing also introduces risks associated with compromised signing keys and untrusted code.
92 %
92 % of organisations report improved document security
Digitally signed documents help organisations increase trust, traceability, and document integrity across business processes. Organisations using e-signatures report measurable improvements in document security and compliance.
5 min
5 Minutes Average electronic signing time
Traditional paper-based approval cycles often take days. Electronic signatures can reduce signing and approval times from several days to just a few minutes, accelerating business-critical processes.
4,44 Mio $
average cost of a data breach
As digital processes grow, protecting the integrity and authenticity of documents, software, and sensitive information becomes increasingly important. The global average cost of a data breach reached USD 4.44 million in 2025.
Why companies choose keyon true-Sign
Digital signatures enable end-to-end processes, protect sensitive content and give you control over certificates, keys and signature workflows.
End-to-end digital processes without media disruptions
Electronic signatures enable fully digital processes and replace manual approvals, printouts and handwritten signatures. Documents can be integrated directly into existing workflows, shortening processing times and making operations significantly more efficient.
Reliably protect integrity and authenticity
Every digital signature confirms the origin of a document and makes subsequent changes transparent. This creates trust in business-critical documents, software and data while making their authenticity verifiable at any time.
Sign digitally and in compliance with legal requirements
keyon true-Sign supports signature procedures based on recognized international standards and enables the use of advanced and qualified electronic signatures. This helps organisations reliably meet legal and regulatory requirements without sacrificing flexible digital processes.
How keyon true-Sign works
From local signatures to a central signature service, keyon true-Sign connects applications, certificates and trust services in one flexible solution.
Integration
Centralised signing and integration of signature services
The keyon true-Sign Service provides central interfaces for signing common file formats. Original files or hash values can be signed, while external remote signature services can be connected via the CSC interface. Timestamps, revocation information and PDF/A conversion can also be integrated into the process.
Web signature
Sign documents and code directly in the browser
keyon true-Sign Web allows you to create signatures in different formats directly in the browser. You can validate files, scan code for malware and centrally manage certificates. The web application uses the services provided by the keyon true-Sign Service.
Local signature
Create signatures locally
keyon true-Sign V connects internal and external signature services to local applications. This enables Office and PDF documents, scripts and macros to be signed on Windows and Mac clients. The solution can be used as a virtual smart card, CSP, KSP or PKCS#11 module, among other options.
One signature solution for different requirements
Whether you need to support document processes, code signing or long-term archiving, keyon true-Sign integrates flexibly into your existing workflows and system environments.
Digital Document Processes
PDF and Office documents can be signed directly within web-based workflows or locally at the workplace.
Single and multiple signatures can be implemented using corporate certificates, public certificates or certificates regulated by law.
Secure Code Signing
Executable files and Office macros are digitally signed so that their authenticity and integrity can be verified before execution.
At the same time, access to signing keys can be centrally controlled, logged and audited.
Verifiable Long-Term Archiving
For the long-term retention of sensitive data, keyon true-Sign combines digital signatures with trusted timestamps.
This keeps the integrity and time of storage verifiable over many years and allows archived content to be revalidated at any time.
Signing on behalf of your company
With true-Sign, both individuals and legal entities can sign documents digitally.
Certificates can be issued accordingly, enabling authorised persons to sign documents on behalf of their company in a manner that complies with the law.
The right package for your specific needs
keyon true-Sign is available as a perpetual licence with annual maintenance and support or as a subscription. The specific configuration depends on the use case, required modules and technical environment.
Essential
Price on request
For local signatures on Windows and Mac workstations.
- Local signatures with keyon true-Sign V
- Connection to internal or external signature services
- Signatures for documents and code
- Use as a virtual smart card, CSP, KSP or PKCS#11 module
Pro
Price on request
For centralised document and code signatures, as well as secure integration into digital business and development processes.
- PDF or code signatures using the true-Sign Service and Web
- A pre-processor interface
- Two signature processors
- Interface to an HSM or external signature service
- Integration into digital document workflows or centralised and traceable code signature processes
Enterprise
Price on request
For extensive signature environments with individual technical requirements.
- All available modules
- Individually selectable processors
- Preprocessor interfaces
- PDF/A conversion
- Validation functions
- Modular pricing
Integrated into your existing infrastructure
keyon true-Sign can be integrated into applications, build processes, signature services and existing public key infrastructures through a variety of interfaces.
keyon true-Sign at a glance
Would you like to explore the solution in more detail? Our product data sheet provides a compact overview of the main functions, use cases, integration options and deployment models available with keyon true-Sign.
Technical documentation for administrators and integrators
From initial installation to connecting existing systems, the technical documentation provides guidance on configuring, operating and integrating keyon true-Sign into your infrastructure.
Flexible to Integrate. Secure to Operate.
keyon true-Sign unterstützt unterschiedliche Bereitstellungsmodelle, etablierte Signaturstandards und die Anbindung zertifizierter Hardware-Sicherheitsmodule.
Private signing keys can be protected by FIPS- and CC-certified hardware security modules. Supported solutions include products from Thales and Securosys.
keyon true-Sign can be flexibly adapted to existing infrastructure, security and compliance requirements. Depending on the selected deployment model, companies can operate the solution entirely within their own environment or use it as a service.
- On-premises
- Private cloud
- Hybrid
- Managed service
To ensure that electronic signatures remain valid and verifiable over the long term, keyon true-Sign supports established standards for signature, archiving and timestamping procedures. This helps organizations reliably implement regulatory requirements and permanently protect digital records.
- PAdES-LTV, XAdES-A and CAdES-A
- RFC 6283 XMLERS
- RFC 4998 ERS
- RFC 3161 Time-Stamp Protocol
keyon true-Sign supports advanced and qualified electronic signatures in accordance with ZertES and eIDAS as well as requirements under GeBüV, FDA regulations and the US ESIGN Act.
Frequently asked questions about keyon true-Sign
keyon true-Sign is available both as a subscription and as a perpetual licence with a one-time licence purchase and annual maintenance. This allows companies to align the solution flexibly with their existing procurement processes, investment budgets and operating models. The most suitable option depends on the required functions, intended use case and planned deployment model.
Preconfigured packages for document signing and code signing are available for common use cases. Companies with more complex requirements can choose a modular Enterprise version, in which functions, signature processors, integrations, validation capabilities and other components can be configured individually. This gives organizations precisely the functionality required for their specific environment.
keyon true-Sign can be flexibly adapted to your company’s security and compliance requirements. The solution can be operated on premises, in a private cloud, in a hybrid environment or as a managed service. This allows organizations to retain control over sensitive data while continuing to use their existing infrastructure and operating models.
Yes. SITS experts support companies with the design, implementation and operation of keyon true-Sign. Services include technical consulting, architecture workshops, support with integrations and assistance with questions relating to document signing, code signing and existing certificate infrastructures. SITS can also support the long-term operation of the solution if required.
keyon true-Sign supports advanced and qualified electronic signatures in accordance with eIDAS and ZertES. It also supports established standards for long-term archiving and timestamping, helping digital signatures remain traceable and verifiable throughout extended retention periods. This makes the solution suitable both for regulated industries and for organizations with demanding traceability and compliance requirements.
keyon true-Sign is developed and maintained entirely in Switzerland and carries the “swiss made software” label. Companies benefit from a solution developed in an environment with high quality and security standards, with its continued development firmly based in Switzerland.
Yes. The solution provides several integration options through REST, SOAP and other standard interfaces. This allows existing business applications, document platforms, build pipelines and certificate infrastructures to be connected without having to fundamentally redesign established processes.
Depending on the use case, keyon true-Sign supports a wide range of document and code formats. These include PDF and PDF/A files, Microsoft Office documents, XML files, EDIFACT messages and various types of executable code and digital artefacts. This makes it possible to implement a central signature strategy across different business and development processes.
Learn more about digital signatures and cryptographic solutions
Public Key Infrastructure and Certificate Management
Digital signatures are based on trusted certificates. Find out how enterprise PKI solutions support the issuance, management and protection of X.509 certificates in modern corporate environments.
Digital Signatures for secure processes
From contracts to tax documents, discover how electronic signatures accelerate business processes, reduce the risk of forgery and enable legally valid digital collaboration.
Experience keyon true-Sign in a personalised demo
Discover the capabilities of keyon true-Sign in a personal demo. Our experts will show you how to securely issue, validate and integrate document and code signatures.
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