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pdf-sign

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laravel-a1-pdf-sign

Multiple digital signatures on a single PDF, in Laravel. Each signature is appended as a new revision, so signing again never invalidates the ones before it. A1/x509 certificates, PAdES profiles, RFC 3161 timestamps, LTV and cryptographic validation.

  • Updated Aug 14, 2026
  • PHP

Trexo PDF Signer is a professional-grade, open-source application designed for creating legally binding digital signatures on PDF documents. Built with enterprise security standards in mind, it provides seamless integration with hardware security modules (HSM), software certificates, and native platform keystores.

  • Updated Feb 5, 2026
  • Java

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