Digital signature software – SignServer Enterprise

A server-side, PKI-based digital signature software used to sign digital documents, PDFs and code

Electronic vs digital signatures

Electronic signatures, Digital signatures, e-sign, e-signature… There are many names for digital signatures, and our digital signature software SignServer Enterprise enables them all. Server side digital signatures give maximum control and security, allowing your staff and applications to conveniently sign code, digital documents and PDFs. SignServer Enterprise comes as our turn-key SignServer Appliance, SignServer Cloud or as flexible software, described below.

This is our digital signature software

SignServer Enterprise is a server-side digital signature software, based on PKI signing used to sign any digital document. Use SignServer Enterprise to sign code, PDFs, ePassports, and more.

  • A digital signature software with high performance and high availability.
  • Operates on behalf of business applications.
  • Designed to perform automated signatures (and other cryptographic operations on digital documents).
  • SignServer Enterprise is easy to adapt to customer specific needs by using plug-ins.

Time stamp authority

To generate digitally signed time stamps SignServer Enterprise can be used as the time stamp unit within a Time Stamp Authority (TSA). Offering both RFC 3161 and MS Authenticode time-stamps, SignServer Enterprise includes monitoring of time synchronization compliant with the strictest regulations.

Time stamps are normally used together with eSignatures to provide proof that a document existed before a certain time, and can also be used together with advanced signatures to ensure long-term validation of archives.


Signing PDFs with a digital signature software

The PDF signer in our digital signature software, SignServer Enterprise adds server generated digital document signatures to any received PDF. Thanks to PKI signing and a flexible authorization system you can easily control who is allowed to sign documents, and the PDF signer is ideal for organizationally authenticated documents such as receipts, invoices, regulatory documents and supports long term archival


Code Signing with SignServer Enterprise

Most code signing needs are fulfilled by SignServer Enterprise, offering the capability to sign different types of code, such as Windows executables, Java applications/libraries, Android applications, firmware for hardware devices, drivers and apps. Different code signing needs are served by different signers:

  • MS Authenticode (for Windows code signing)
  • JAR signing (For Java and Android code signing)
  • CMS/PKCS#7
  • Plain signature

Signing ePassports

SignServer Enterprise comes with a built-in plug-in for Machine Readable Travel Document (MRTD) signing. MRTD is implemented worldwide within electronic passports mandated by ICAO. SignServer Enterprise is used both for MRTD signing and for CSCA master list signing.

Selected blog posts on SignServer

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Support and maintenance

PrimeKey developers are passionate about maintaining the high quality of our digital signature software, SignServer through continuous updates and upgrades. Each new release contains improvements and upgrades to the SignServer functionality, improving the software and keeping it up to date with current regulations. By subscribing to PrimeKey support and maintenance you will automatically gain access to these new releases and upgrades, ensuring the highest quality of your PKI implementation.

As with any software, and especially with security software, it is important to keep SignServer updated with continuous releases and security patches. Having a subscription to PrimeKey Support will not only give you access to new upgrades and features but also ensure that your software is kept up to date when it comes to security. In short, PrimeKey Support will keep your software at the highest security standards.

Through a PrimeKey Support subscription, both your management and your customers can sleep sound, assured that audit and policy requirements are fulfilled. And in case of issues with your PKI signing, or simply new demands on it, you have timely access to, and support from, our skilled PKI professionals.

Read more about PrimeKey Support

Talking about smart meter security concerns

Deployment options – Software, Appliance, Cloud or Hybrid

PrimeKey understands that organizations have unique business challenges, including security requirements, budgets and the availability of internal resources. We give you the choice of and the choice to combine – Software, hardware Appliance and Cloud deployments for your PKI solution. This means the infrastructure can be deployed in the manner best suited to your business needs and can grow flexibly and expand over time.

Your deployment options

Supported Signers

In SignServer 4.1 and later

  • TSA, RFC 3161, RFC 5816 and Authenticode compliant Time Stamp Authority.
  • PDF
  • CMS/PKCS#7
  • Authenticode for signing Windows executable files and installer applications.
  • JAR signing for signing Java and Android files.
  • Plain signature, for generic signing.
  • XML and XAdES (signing and validation).
  • ePassport MRTD signer compliant with ICAO.
  • ePassport CSCA master list signer compliant with ICAO.
  • ePassport signer suitable for signing deviation lists compliant with ICAO


SignServer also has the ability to develop custom plug-ins, ensuring maximum customer benefit.