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Move Away from Ink and Paper with Confidence

Use Entrust document signing certificates to generate trusted digital signatures and seals embedding verified identity and/or organization details.

Our certificates are trusted and compatible with major document readers and editors, such as Adobe Acrobat solutions or Microsoft Word.

Document Signing Certificates Benefits

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Signatures with Strong Added Value

Digital signature combines strong identity verification, authenticated signing processes, and document integrity mechanisms to provide the highest levels of admissibility.

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Keep Ownership and Control of Your Content

Trusted digital signatures and seals on documents provide real guarantees of ownership and integrity, as well as non-repudiation when combined with timestamping.

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Alignment with Global Standards

Entrust is member of the Adobe Approved Trust List (AATL) and Microsoft Root Program. Our certificates are recognized and trusted across the globe.

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Start signing in three steps

  1. Buy your certificate license on the Entrust e-store and convert it into a document signing certificate in your Entrust account.
  2. Entrust will verify your identity and/or organization details and ship you a secure USB token if you do not have one already.*
  3. Install your certificate in the USB token and start signing using any compatible tool, such as Adobe Acrobat Reader.*

*Note: Enterprise document signing certificates require an HSM (use your own or buy one from us)

Document Signing Certificates Features

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Timestamping Service Included

Add a trusted timestamp to all your digital signatures and seals with the Entrust public timestamping service.

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Verified and Trusted Identities

Entrust verifies organization, employee and individual identities according to Adobe, eIDAS and WebTrust standards.

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Application Agnostic

Our document signing certificates can be used with any application that supports digital signing with x.509 digital certificates.

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Flexible Options

We issue certificates for individuals, employees and/or organizations, with multi-year terms available.

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Automatic or Manual Signing

We have dedicated certificates and storage options for manual and automated signing or sealing scenarios.

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Signature Compliance

Digital Signatures are recognized by multiple laws, including US Federal ESIGN Act and eIDAS.

Choose Your Document Signing Solution

Our document signing certificate solutions include support and offer options for signature type, signature amount, and lifetimes.


Solution Type
Signature Examples
Certificate Storage
Number of Signatures



Individual or Individual in Organization
John Doe or John Doe @ ABC co
USB Token (included)



Group, Department or Organization
Billing Group
Marketing Department
USB Token (included)



Group, Department or Organization
Billing Group
Marketing Department
50,000/year or



Group, Department or Organization
Billing Group
Marketing Department


  • Click to select...

Supported Systems

Our Document Signing Certificates support the following software.

For more information on system requirements, compatible software, and operating systems, download our Document Signing Certificates Data Sheet.

Sign and Certify

Entrust Document Signing Certificates can be used with Adobe Acrobat for PDF signing or PDF certification. Certification only comes from an Adobe CDS or AATL CA. Certification indicates that the signer was verified to Adobe’s requirements and that the private key is protected in hardware.

  • Adobe Acrobat DC
  • Adobe Acrobat XI Standard
  • Adobe Acrobat XI Pro
  • Adobe Acrobat X Standard
  • Adobe Acrobat X Pro
  • Adobe Acrobat 9 Standard
  • Adobe Acrobat 9 Pro

Sign Only

Adobe Reader

  • Users can sign with Reader, but signatures cannot be certified.

Operating Systems

  • Microsoft Windows Server 2012 (64-bit), 2012 R2 (64-bit)
  • Microsoft Windows Server 2008 R2 SP1 (64-bit)
  • Microsoft Windows Server 2008 SP2 (32-bit)
  • Microsoft Windows 7 (32-bit and 64-bit)
  • Microsoft Windows 8 (32-bit and 64-bit)
  • Microsoft Windows 8.1 (32-bit and 64-bit)

Other Applications

  • OpenOffice
  • LibreOffice
  • Bluebeam

System Requirements

Certificate Download Requirements

  • Microsoft Windows Operating System – 7, 8.1
  • Microsoft Windows Server Operating System – 2008 and 2012
  • Microsoft Internet Explorer 10 and 11
  • FIPS-Validated Software – Provided upon purchase only for individual and group certificates

Certificate Signing Requirements

  • Microsoft Windows Operating System – 7, 8.1 and 10
  • Microsoft Windows Server Operating System – 2008 and 2012
  • Adobe Reader
  • Adobe Acrobat
  • Microsoft Office Word and Excel
  • OpenOffice
  • LibreOffice
  • FIPS-Validated Software – Provided upon purchase only for individual and group certificates

Viewing Requirements

  • Adobe Reader, Acrobat or other PDF software compatible that supports certificate-signed PDF documents
  • Microsoft Word and Excel

    How-To Guides and Resources

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