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Document Signing Certificates

Document signing certificates provide trusted assurance of authentication for electronically transmitted documents by validating author and document.

Document Signing Certificate

About Document Signing

Easily Sign and Secure Documents

A digital signature uses a secure digital key that certifies the identity of the author of a digital message or document. Digital certificates give customers confidence that the signed documents originate from the recognized source and have not been forged or tampered with.

Adobe Document Signing Certificates offered by ComodoCA enable organizations to secure Adobe Acrobat documents with digital signatures. Certification originates from the Adobe Certified Document Services (CDS) or the Certificate Authorities that are members of the Adobe Approved Trust List (AATL). Certification attests that the signer has been verified by Adobe for compliance to its requirements and that the certificate is on the protected hardware.

ComodoCA provides a complete range of digital signature capabilities while maintaining competitive prices.


  • Compatibility with Adobe products
  • Support for document authenticity and non-repudiation for the lifetime of the document
  • 1, 2, 3-year term options; with unlimited signatures
  • Sectigo signature verification on any digital documents signed by a recipient
  • A timestamp, indicating when it was signed
  • SHA-2 Signing and 2048-bit encryption for security and browser compliance
  • iKey USB token
  • Display signer's name and email
  • FIPS Validated Software, provided by Sectigo upon purchase

Additional Information

Key Information on Document Signing Certificates

These certificates enable individuals and organizations (depending on the type purchased) to digitally sign PDF documents while complying with the U.S. Federal ESIGN Act and applicable international laws. The certificate verifies the publisher's identity and authenticity of the document.

Document Signing Certificates can be used on any platform that trusts the Sectigo root certificate. Most PDF file formats are supported, including Adobe PDF.

Sectigo Document Signing Certificates can be ordered for any valid email address. There are two types of certificates:

  • The certificate in the name of an individual
  • The certificate in the name of an organization

Both types come with an unlimited number of signatures and the option of 1,2, or 3 year validation term.

Validation is an important part of the certificate issuing process. As such, ComodoCA has adopted stringent validation policies and procedures to strengthen the security of certificate operations and validation processes.

ComodoCA verifies the following:

  • The identity of the applicant
  • The identity and address of the entity to confirm its physical existence
  • That the entity has authorized the issuance of the certificate

The validation work is done by ComodoCA. You are required to respond to emails, follow instructions and provide the requested documents.

ComodoCA aims to promptly complete your order while adhering to validation standards. To ensure the integrity of the certificate, ComodoCA will not issue a certificate that has not passed validation.

After you have submitted the required documents, ComodoCA will validate the information and identity. The validation process may take 1-5 business days. You will be notified by email when the validation process is complete. Once the certificate is issued, it will be installed on the USB token and mailed to you. The arrival time depends on your location and shipping methods. You will receive tracking information via email.

For more information, refer to our detailed document signing certificate instructions.

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